题目内容

 ____________ be late, or you will miss the exciting beginning of the speech.
A．Mustn’tB．Can’tC．Don’tD．Shouldn’t
C

试题分析：句意：不要迟到了。否则你将错过这个精神的演讲开始。分析本句否定祈使句。一般说来，祈使句的否定是在祈使句首加Don’t。如： Come here. —Don’t come here. 不要来这儿。故选 C
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