问题补充:
---Has Tom finished his homework?
---I don’t know. But he it the whole morning.
A. did
B. does
Cwas doing
Dis doing
答案:
A. did
B. does
(答案→)C. was doing
D. is doing
解析:此题重点考查过去进行时的基本用法。
时间:2020-05-25 10:56:04
---Has Tom finished his homework?
---I don’t know. But he it the whole morning.
A. did
B. does
Cwas doing
Dis doing
A. did
B. does
(答案→)C. was doing
D. is doing
解析:此题重点考查过去进行时的基本用法。
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