题目内容
Only in this way, directed by the teacher, ______work out the problem the day before.
|
A.had they |
B.they could |
C.could they |
D.did they |
D
【解析】略
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题目内容
Only in this way, directed by the teacher, ______work out the problem the day before.
|
A.had they |
B.they could |
C.could they |
D.did they |
D
【解析】略
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||