单项选择题

The investigation group tried in () to discover what caused the failure of the engine.

A．diligence
B．vain
C．vigor
D．zeal

<上一题目录下一题>

热门试题

单项选择题

I didn't () the meeting because I was ill.

A．join
B．enter
C．attend
D．appear

单项选择题

His tone () his real feelings more than his words.

A．paraphrased
B．conformed
C．performed
D．conveyed

相关试题