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Practice identify correct sentences with correct verb tense and fix any verbs that don not match the tense of the verb written.

If the price of printers goes down, what happens in the market for ink cartridges: Demand increases.. Generally speaking, the lower the price, the greater the quantity demand: True. For the law of demand, as price rises, what happens to quantity demanded: it goes down. For the law of supply, as price rises, what happens to quantity supplied: it goes up. What are Substitute Goods: Items that may replace each other when used or consumed.. New robot technology increases productivity of car producers. What happens to market for cars: Supply shifts right. Price of cars increase. What happens to market for cars: No change in supply. Cost of steel increases. What happens to market for cars: Supply shifts left. The diagram represents a: increase in demand. Thousands of people leave a small town due to a factory closing down.  Sales at the local grocery store become slow. What causes this change: Change in the number of buyers. Which of the following is likely to increase the demand for peanut butter: News that insects have destroyed much of the peanut crop and that there will be less peanut butter on the shelves in three months.. What does the red solid line on the graph show: Surplus

A _____________ is a mountain that builds up around an opening in Earth's crust: volcano. Movements in Earth's crust caused by a sudden shift in Earth's plates are _____________: earthquakes. Flooding can cause: landslides.. What force causes landslides: gravity. Landslides and Volcanoes are examples of ________ changes in Earth's surface: rapid. When a large amount of loose rock and soil move rapidly, a ____________ occurs: landslide. A volcano can directly change Earth’s surface by : building up layers of hardened lava. Which of the following is one way an earthquake affects the Earth: Large cracks suddenly form in the ground.. Which would be an example of a rapid change to the Earth’s surface: A mountain forming due to volcanic eruptions. The picture shows an island in the middle of the ocean that increased in size in only a few weeks. Which of the following most likely caused this rapid change in the island: Eruptions of a volcano. Which of the following best describes how earthquakes change the Earth’s surface? Earthquakes : violently shift the surface of the earth. The rock layers pictures here have split and been shifted. What most likely caused this change: Earthquake

In the top of the maple tree, the sparrow was busy building ________ nest. Which pronoun correctly completes the sentence: its. Which pronoun is plural: few. Which pronoun is always singular: each. Either the bassist or the guitarist needs to turn__________amp up.Which fits the blank: his. Which fits the blank?One clown and 6 jugglers made ___________way out of the volkswagen: their. Which sentence has an underlined pronoun that is correct: One of the girls brought her pictures from the family vacation.

The pronoun is INCORRECT. Replace it with the correct pronoun. The exhibit was on butterflies, and they included a film. : it. The pronoun is INCORRECT. Replace it with the correct pronoun.Queen Latifah was known for its rap music: hers. Since my friends and I love fashion, the topic interested them. : us. A ruler is ancient Egypt could do as they pleased. : he. The Egyptians saw rulers as gods, so in 1350 BC, we worshipped Nefertiti. : they. Some unknown artist had tried to capture Sam's face in ______________ sculpture. : his. A few ancient Egyptian rulers were women, but usually _________ had to be male. : they. In 1912, archeologists dug up sculptures and shared ______ with the world. : them. When we saw the sculptures, __________ could see why his name meant, "the beautiful one has come.": we. If you have questions about famous sculptures, the guide will answer ___________. : them. We stopped the game because you couldn't see each other in the fog. : we. All the girls were excited to be able to wear _______ new dresses to the dance: their . Coach Bob was proud of the way _____ team played in the game: his. Billy and _____ plan to ride our bikes to the park as soon as school is out: I . Mrs. Marshall's students won the reading contest. ________ read more books than any other class in the sixth grade: They. Johnny's friends are all on the football team with _____: him. Lucy loves pepperoni and onions with extra cheese on _____ pizza: her. ______ can't wait to go to see my Aunt Sara for the holidays: I . When Tiffany went ice skating, ______ fell and twisted her ankle: she. My dog loves playing catch with his ball, except _______ never brings it back: he. Derek's friends tell him about baseball, and he tells ______ about cricket: them. Which sentence is incorrect: When Derek makes a joke, everybody laugh.. Which word correctly completes this sentence? “That dictionary is yours, and this one is ______.”: mine

Instead of going out with her friends, Jane chose to stay at home to study for her math test. Jane got a high score on the test. Why did she earn a high score on the test: because Jane chose to study. A teacher has five movie tickets to give to her ten students. What is most scarce? : tickets. On your way to the shopping mall, a friend asks you to play basketball. Another friends wants you to go to his house to play video games. What must you do first: make a choice.. On Saturdays Alicia usually goes to see a movie with her friends. However, last Saturday she chose to visit her grandmother instead. What was the opportunity cost of Alicia's decision? : seeing the movie. Jim wants to be a good cook. He is taking cooking lessons. Jim is improving his: human capital. After graduating from high school, Marcus found a better paying job than his sister who dropped out of school. Why: Finishing school made Marcus a more productive worker.. When we make a decision we choose between two or more alternatives. What is always true about alternatives: There are costs and benefits to every alternative.. Which of the following best describes the concept of scarcity: When our wants are greater than our available resources.. Which of the following is an important economic reason for going to school: School can help you develop your human capital which can provide you with more job alternatives.. At a clothing factory each worker makes complete sheets. What would happen if the manager decided to use an assembly line in which each worker makes only one part of the shirts: Division of labor would allow the factory to make more shirts faster.. You are a member of the labor force when you: have a job or begin looking for a job. Why is a worker' human capital important to an employer: Workers with more human capital are more productive workers.. Alonzo works in a fast food restaurant. Alonzo's boss pays him $9.25 an hour during the week and $10.25 an hour on the weekend. Why does Alonzo's boss pay more on the weekends: To create a positive incentive for Alonzo to work on the weekends.. Marcia is good at taking pictures with her camera but she is a very poor typist. She enrolled in a photography class instead of taking a typing course. Which of the following is true: Marcia may be developing a specialty in photography.. If people begin buying more of their favorite music albums on iTunes instead of compact discs, what will happen: More workers will be needed to work in the computer industry.. Why do people who drop out of school usually earn less than people who graduate from high school or college: People who drop out of school have less human capital and are less productive workers.. Jesse is a pitcher for a baseball team. Why does Jesse's coach ask him to practice pitching instead of taking batting practice with his teammates: Jesse can be more productive for the team if he specializes in pitching.. Why can a newspaper reporter writer her stories faster using a computer than an electric typewriter: Improvements in technology and capital goods improve productivity.. What is true about the choices you make: Your choices today affect you in the future.. Stacy wants to be an engineer. What is the first thing that Stacy should do to become an engineer: Think about her career goals and make a plan.