______ , he can quickly find out what’s wrong with the machine.

admin2009-06-28 40

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 be well trained
D、To have been well trained

答案A

解析本题测试的是非谓语动词的用法。主句主语he是动作train的接受者，且该动作已经完成。故选A。

转载请注明原文地址:https://kaotiyun.com/show/ebuK777K

大学英语三级B级

相关试题推荐

随机试题

最新回复(0)