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

游客2023-10-03 51

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

转载请注明原文地址:https://tihaiku.com/zcyy/3067463.html

相关试题推荐

随机试题

最新回复(0)

I’dappreciateitifyoucouldtellmehow______themachine.A、operateB、toope