Tony full marks, but he was so careless as to make a spelling mistake.
A. could have gained
B. can have gained
C. must have gained
D. must gain
Tony full marks, but he was so careless as to make a spelling mistake.A. could have gain
答案:2 悬赏:30 手机版
解决时间 2021-12-23 02:15
- 提问者网友：最美的风景
- 2021-12-22 08:28
最佳答案
- 五星知识达人网友：洎扰庸人
- 2021-12-22 08:56
(答案→)A. could have gainedB. can have gained C. must have gainedD. must gain解析：句意：Tony本来可以得满分的，但是他太粗心了，犯了一个拼写错误。could have gained表示过去本来可以做的事而没做；can have gained表示对过去情况的怀疑或不确定；must have gained表示对过去发生的事情或状态进行推测，选A。
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- 1楼网友：洎扰庸人
- 2021-12-22 09:23
正好我需要
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