那个教授正在实验室里做实验。(carry out) 5. The professor is carrying out an experiment in the lab.

发布时间:2020-08-17 13:38:40

那个教授正在实验室里做实验。(carry out)
    5. The professor is carrying out an experiment in the lab. 

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(答案→)5. The professor is carrying out an experiment in the lab. 
解析:注意用进行时态。
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