The children __very quiet;I wonder what they __up to.
A. were; are being
B. are being;are
C. are;do
D. are being;do
The children __very quiet;I wonder what they __up to.A. were; are beingB. are being;areC.
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解决时间 2021-12-29 22:29
- 提问者网友:沉默菋噵
- 2021-12-29 17:32
最佳答案
- 五星知识达人网友:英雄的欲望
- 2021-12-29 18:10
A. were; are being(答案→)B. are being;areC. are;doD. are being;do解析:be用于进行时可表示一个暂时的特点或表现。What they are up to相当于What they are doing。
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- 1楼网友:末日狂欢
- 2021-12-29 19:27
这个解释是对的
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