单项选择题

It has something （） with poor workmanship and assembly, doesn’t it?

A.do
B.to do
C.done
D.doing

点击查看答案&解析

上一题目录下一题

相关考题

单项选择题

The certificate for the refrigerating plant will（）soonI’d like to extend its validation now.

A.update
B.finish
C.outdated
D.expire

单项选择题

（）, remedies must be taken to stop it as early as possible.

A.Any surge occurs
B.Any surge occurred
C.Should any surge occur
D.Should any surge occurring

单项选择题

（）, the motion would continue indefinitely once it had started.

A.Were there loss of energy by friction
B.Since there be loss of energy by friction
C.Were there no loss of energy by friction
D.Should be no loss of energy by friction