单选题：Thick clouds obscured the stars from view.

题目内容：

Thick clouds obscured the stars from view. A．darkened
B．held
C．blackened
D．prevent

参考答案：

答案解析：

The telephone system is no longer operative.

The telephone system is no longer operative.A．running B．moving C．rotating D．work

分类：理工类题型：单选题

The story was touching.A．inspiring B．boring C．moving D．frightening

分类：理工类题型：单选题

Reading the job ad, he wondered whether he was eligible to apply for it.A．compet

分类：理工类题型：单选题

They only have a limited amount of time to get their points across.A．large B．tot

分类：理工类题型：单选题

回答(13)题A．recover B．reform C．return D．rely

分类：理工类题型：单选题