At last he finish the work ahead of time.
A. could
B. was able to
C. could have done
D. would have been able to
At last hefinish the work ahead of time.A. couldB. was able toC. could have doneD. would h
答案:2 悬赏:30 手机版
解决时间 2021-01-03 16:07
- 提问者网友：沉默的哀伤
- 2021-01-02 20:09
最佳答案
- 五星知识达人网友：几近狂妄
- 2021-01-02 20:45
A. could(答案→)B. was able toC. could have doneD. would have been able to解析：此句检测对can和be able to辨析使用的能力。从时态上讲，can只有过去，而be able to可用于各种时态；从语意上讲，be able to的过去可表示“设法完成某事”，相当于managed to do sth.而could则无此用法。
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- 1楼网友：酒者煙囻
- 2021-01-02 21:41
我好好复习下
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