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情态动词：
15. I’m afraid I send the document（文件）to you on time because of the heavy rain.
A. can’t B. mustn’t C. needn’t D. wouldn’t
16. —I want to become thinner.
—You really need to, and you stay away from meat.
A. should B. may C. can D. need
17. —Do we have to finish our homework this afternoon?
—Yes, you .
A. must B. can C. may D. need
18. —The computer is so small.
—Even though, it store large amounts of information.
A. must B. should C. can D. may |