欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

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. to have caused [解析]選C 根據(jù)flu和介詞by可知應(yīng)該用被動語 態(tài).所以排除A.D項.再根據(jù)is believed.可知C項為最佳 選項.因為sth. is believed / considere / thought是英語中 的一種常見句式. 【查看更多】

 

題目列表(包括答案和解析)

The flu is believed________ by viruses that like to reproduce in the cells inside the human nose and throat．


  1. A.
    causing
  2. B.
    being caused
  3. C.
    to be caused
  4. D.
    to have caused

查看答案和解析>>

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

查看答案和解析>>

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.to have caused

查看答案和解析>>

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?

查看答案和解析>>

The flu is believed ______ by viruses that like to reproduce in the cells inside the human nose and throat.

A. to be caused                   B. to have caused               C. being caused                   D. causing

 

查看答案和解析>>


同步練習冊答案