we went to visit Professor Smith, he his research work.
A. The first time; devoted to
B. Whenever; was concentrate on
C. For the first time; was busy with
D. Each time; was absorbed in
we went to visit Professor Smith, hehis research work.A. The first time; devoted toB. When
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解决时间 2021-12-31 17:41
- 提问者网友：niaiwoma
- 2021-12-31 14:11
最佳答案
- 五星知识达人网友：像个废品
- 2021-12-31 15:13
A. The first time; devoted toB. Whenever; was concentrate onC. For the first time; was busy with(答案→)D. Each time; was absorbed in解析：Each time每次；The first time第一次；Whenever无论何时；逗号前后都是一个句子，故第一空应选连词，所以排除C，devote to致力于；concentrate on集中精力于；be busy with忙于；be absorbed in专心于。句意：每次我们去看望史密斯教授时，他都在专心于他的研究工作。
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- 1楼网友：冷風如刀
- 2021-12-31 15:23
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