-What's up? You look worried.
Well,I on the problem for 5 hours but I haven't got a single clue.
A. have worked
B. Worked
C. will work
D. have been working
-What's up? You look worried.Well,Ion the problem for 5 hours but I haven't got a single c
答案:2 悬赏:20 手机版
解决时间 2021-01-04 00:47
- 提问者网友：做自己de王妃
- 2021-01-03 00:05
最佳答案
- 五星知识达人网友：患得患失的劫
- 2021-01-03 00:52
A. have workedB. WorkedC. will work(答案→)D. have been working解析：考查时态。从时间状语 for 5 hours，可排除BC，然后根据 but I haven't got a single clue，说明work这个动作还要持续下去，故用现在完成进行时。句意：——怎么啦？你看起来很焦急。——唔，我花了5个小时在这个问题上但现在还没有什么头绪。
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- 1楼网友：猎心人
- 2021-01-03 01:45
谢谢了
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