— Has Jack finished his homework yet?
— I have no idea；he ＿＿it this morning.
A. was doing
B. had been doing
C. has done
D. did
— Has Jack finished his homework yet?— I have no idea；he ＿＿it this morning.A. was doingB.
答案:2 悬赏:60 手机版
解决时间 2021-03-19 01:42
- 提问者网友：喧嚣尘世
- 2021-03-18 12:14
最佳答案
- 五星知识达人网友：杯酒困英雄
- 2020-11-22 19:38
(答案→)A. was doingB. had been doingC. has doneD. did解析：题干没有构成“过去的过去”，不可选B。如选C、D则表示动作已完成，与have no idea相矛盾。过去进行时表示过去某段时间或某一时刻正在进行的动作，不涉及结果，正好附合题干语境。
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- 1楼网友：轮獄道
- 2020-10-08 09:52
正好我需要
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