Nearly half a million people are believed their homes in the past months as a result of t

发布时间:2020-08-17 05:12:58

Nearly half a million people are believed      their homes in the past months as a result of the disaster.
A. to leave
B. to have left
C. to be leaving
D. to be left

网友回答

A. to leave
(答案→)B. to have left
C. to be leaving
D. to be left
解析:
试题分析:考查非谓语的用法。句意:人们相信几乎有50万人在过去的数个月中由于灾难的原因而离开了家园。在句型sb /sth +is said to do 中,如果不定式动作发生过了,则用不定式的完成式to have done表示;如果将要发生,则用不定式的一般式to do表示;如果不定式动作正在发生,则用不定式的进行式to be doing表示。在此句中 in the past months 提示动作已经发生,则应该用不定式的完成式。所以B选项正确。
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