A-A+

______ he can quickly find out what's wrong w

2022-08-01 22:55:29 问答库 阅读 168 次

问题详情

______, he can quickly find out what"s wrong with the machine.
A.Having been well trained
B.Having well trained
C.To have been well trained
D.To have been well trained请帮忙给出正确答案和分析,谢谢!

参考答案

正确答案:A
解析:做完作业后,他出去了。

考点: