They were surprised that a four-year-old boy should work out such a difficult problem they themselves couldn’t.
A. once
B. then
C. while
D. if
They were surprised that a four-year-old boy should work out such a difficult problem the
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解决时间 2021-12-20 22:01
- 提问者网友：容嬷嬷拿针来
- 2021-12-20 06:43
最佳答案
- 五星知识达人网友：独钓一江月
- 2021-12-20 07:43
A. onceB. thenC. whileD. if解析：while是并列连词,意为“而,却”,前后有对比的意味。
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- 1楼网友：往事埋风中
- 2021-12-20 08:52
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