The flu is believed by viruses that like to reproduce in the cells inside the human nose

发布时间:2020-08-17 13:26:14

The flu is believed      by viruses that like to reproduce in the cells inside the human nose and throat.
A. causing
B. being caused
C. to be caused
D. be have caused

网友回答

A. causing
B. being caused
(答案→)C. to be caused
D. be have caused
解析:此题考查非谓语结构。在英语中表示“据说/传/知道……” 的句型是It is said/reported/known that sb./sth.=Sb./Sth. is said/reported/known to...;流感是被引起的,所以选C项。
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