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【題目】__________ healthy, we are supposed to protect our environment.
A. Keep B. To keep C. keeping D. kept
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【題目】Experts predict that robots _____________ in many fields in the future.
A. will be used B. are used C. were used D. have been used
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【題目】Our math teacher________a father________us.
A.likes; toB.is like; toC.likes; for
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【題目】We may use________things________.
A.everyday; every dayB.every day; everydayC.everyday; everyday
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【題目】— ________late for school again, Tom!
— Sorry, I________.
A.Don’t; willB.Don’t be; won’tC.Don’t; won’t
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【題目】—I’m sorry to keep you________for a long time.
—It doesn’t matter.
A.waitB.waitingC.to wait
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