题目内容
Since the road is wet this morning, _____ last night.
| A.itmustrain | B.itmusthaverained |
| C.itmustberained | D.itmusthavebeenrained |
B
略
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题目内容
| A.itmustrain | B.itmusthaverained |
| C.itmustberained | D.itmusthavebeenrained |