2. 职称英语
  3. ______, he can quickly find out what’s wrong with the machine.A、Having been well

______, he can quickly find out what’s wrong with the machine.A、Having been well

游客2024-07-10  18
问题 ______, he can quickly find out what’s wrong with the machine.
选项 A、Having been well trained
B、Having well trained
C、To have been well trained
D、To have been well trained
答案 A
解析 现在分词短语作状语。本题考查分词的时态与分词的被动语态。根据题意判断，分词的动作(训练)发生在谓语动词的动作(找出)之前，因此用分词的完成式。本题的含义是"他已经被训练过"，所以用现在分词的完成被动式。[例句] Having finished his homework，he went out．做完作业后，他出去了。
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