18.-_________ run in the hallways.
-Sorry,I won't.(  )
A.PleaseB.Please notC.NotD.Don't

分析 --不要在走廊里跑.
--抱歉,我不會了.

解答 答案:D.
結(jié)合Sorry,I won't 可知上文是否定祈使句,故用don't+動詞原形,故選D.

點評 一般說來,祈使句的否定是在祈使句首加Don't.如:
(1)Come here.-Don't come here.不要來這兒.
(2)Be angry.-Don't be angry.不要生氣
當祈使句表示邀請或建議(Let's…) 時,則在Let's與 do之間加not.如:
(1)Let's talk about it.-Let's not talk about it.我們別談?wù)撍桑?br />(2)Let's go swimming there.-Let's not go swimming there.我們別去那里游泳吧.

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