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问题: needn't与don't need

You ____ a bus. The bookshop is near here.
A. need B.not need C.need not D.don't need

为什么选D,不选C?

解答:

C是情态动词的使用形式,而need作情态动词时后面要放动词原形,在叙述需要或不需要某物时need应该放实意动词形式,故选D.