大学英语:时态考题专练(六)
【考题】
16、She ought to stop working; she has a headache because she ________ too long.
A. has been reading B. had read
C. is reading D. read
17、—Why do you look worried?
—Fred left the company half an hour ago. His work ________ unfinished since.
A. left B. was left
C. has left D. has been left
18、 —You could have asked Mr. Johnson for help. He is kind-hearted.
—I ________ that. A whole day ________.
A. forget; wastes B. forgot; was wasted
C. forgot; had wasted D. forget; was wasted
【解析】
16、A。
从第一句话She ought to stop working 可知“他仍然在学习”,故后面用现在完成进行时态。
17、D。
受前一句left的影响,易误选B。题干中的since说明此处应用现在完成时态。从问句中也可看出来,此处强调动作对现在的影响,故要用现在完成时的被动式。
18、B。
说话之前“忘了”,故用一般过去时态;第二空应用一般过去时的被动语态形式。
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