Chemistry isn’t very difficult. You________ be afraid of it.

A. mustn’t B. can’t C. don’t D. needn’t

D 【解析】句意：化學(xué)不是很難，你不需要害怕它。A. mustn’t表示禁止；B. can’t表示不可能；C. don’t不要；D. needn’t表示不必、不需要。根據(jù)句意化學(xué)不是很難，你不需要害怕它，表示“不需要”用needn’t，故答案選D。
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(2016●泰州市)---Could you tell me _____________?

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