题目内容

— Lisa hasn't lived here for long. She _____ know many people.
A．needn’tB．can’tC．shouldn’tD．didn’t
B
Lisa hasn’t lived here for long .Lisa 在这儿住的时间不长。因此，她不可能认识很多人。情态动词can这里表示推测，主要用于疑问句、否定句和条件句。needn’t表示“不必”，shouldn’t表示“不应该”，都不用于推测；didn’t和前一句的时态矛盾，因此排除。
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