The extra room very useful when we had visitors.
A. was proved
B. proved
C. has been proved
D. has proved
The extra room very useful when we had visitors.A. was provedB. provedC. has been provedD
答案:2 悬赏:60 手机版
解决时间 2021-01-04 06:47
- 提问者网友：伴风望海
- 2021-01-03 17:21
最佳答案
- 五星知识达人网友：迟山
- 2021-01-03 18:09
A. was proved(答案→)B. provedC. has been provedD. has proved解析：系动词用法。系动词prove是没有被动语态的。“Prove +形容词”构成系表结构。
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- 1楼网友：十鸦
- 2021-01-03 18:48
谢谢回答！！！
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