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You ______ always look both ways before crossing the street.

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My friends believed that I ______ become an engineer.

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Tom: “Which careers involve helping people?” – Susan: “______”

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You ______ be 18 years old to vote in the United States.

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You ______ smoke in a hospital.

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Before enrolling, you need to check whether the college is _____.

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Readers of the magazine said they wanted more stories about ______ people and fewer stories about the rich and famous.

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