many times, but he still doesn’t know how to operate the machine properly.
A. Although I have shown him
B. I have shown him
C. Having been shown
D. Having shown
many times, but he still doesn’t know how to operate the machine properly.A. Although I h
答案:2 悬赏:40 手机版
解决时间 2021-04-13 14:42
- 提问者网友：难遇难求
- 2021-04-12 21:37
最佳答案
- 五星知识达人网友：由着我着迷
- 2021-04-12 21:45
A. Although I have shown him(答案→)B. I have shown himC. Having been shownD. Having shown解析：考查句子结构。因为句子中有but,所以前面也应该是一个句子。答案为A。如果本题没有but,答案就应该是C。句意：我已经给他展示过很多次了，但是他仍然不知道怎么样恰当地操作机器。
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- 1楼网友：持酒劝斜阳
- 2021-04-12 22:31
和我的回答一样，看来我也对了
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