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More and more teenagers are ______ about the protection of the environment. It’s a good sign.

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If you study hard, you ______ pass the final exam easily.

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You ______ always look both ways before crossing the street.

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You ______ smoke in a hospital.

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Although the exam was really difficult, everyone ______ finish it on time.

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The car is too expensive so we're trying to find a cheaper _______.

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After finishing school, Tom decided to do an ________ at a local garage to learn how to repair cars.

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All the citizens must ______ the traffic rules to protect themselves and the others.