agoodinsulator,rubberisoftenus

______ a good insulator , rubber is often used in cables.

A．Having been

B．To be

C．Be

D．Being

登录免费查看答案和解析

相关试题

Don’t call me tomorrow evening, for I ____________to a lecture on how to keep a good state of mind when taking an exam.

A．will listen

B．should listen

C．shall listen

D．will be listening

收藏答案/解析

rise in carbon dioxide is causing steady increase in global warming.

A．不填; a

B．The; a

C．The;不填

D．A；the

收藏答案/解析

–Would it bother you if I asked for your opinion on this report?
--______.

A．No, I don’t

B．Yes, go ahead

C．Not at all

D．With pleasure

收藏答案/解析

–When has the country been united as one?
--______1998, I suppose.

A．In

B．From

C．After

D．Since

收藏答案/解析

–Daddy, I’m anxious about the coming exam.
--Come on, boy. You’ve got to have confidence in yourself _____ you will make it.

A．when

B．which

C．that

D．how

收藏答案/解析