30．The extra roomvery useful when we had visitors．A. had been provedB. was provedC. had pr
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解决时间 2021-04-08 20:05
- 提问者网友：無理詩人
- 2021-04-08 11:22
30．The extra room very useful when we had visitors．
A. had been proved
B. was proved
C. had proved
D. Proved
最佳答案
- 五星知识达人网友：白昼之月
- 2021-04-08 12:05
A. had been provedB. was provedC. had proved(答案→)D. Proved解析：可联系答案网客服索取此答案。
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- 1楼网友：神也偏爱
- 2021-04-08 12:29
你的回答很对
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