Thefluisbelieved
来源:语文精选馆 3.45W
问题详情:
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
【回答】
C
知识点:非谓语动词
题型:选择题
问题详情:
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
【回答】
C
知识点:非谓语动词
题型:选择题