thepeoplehavebecomemastersofth

_______ the people have become masters of their country _______ science can really serve the people.

A．It is only then; that 

B．It was that; when

C．It is only when; that

D．It was when; then

登录免费查看答案和解析

相关试题

Don't handle the vase as if it ______ made of steel.

A．is

B．were

C．has been

D．had been

收藏答案/解析

Do you think this skirt is too tight ______ the shoulders?

A．at

B．on

C．to

D．across

收藏答案/解析

Wethe difficulty together, but why didn't you tell me?

A．	should face	B．	might face
C．	could have faced	D．	must have faced

收藏答案/解析

Birds' singing is sometimes a warning to other birds ______ away.

A．to stay

B．staying

C．stayed

D．stayed

收藏答案/解析

______ at the door before you enter my room, please.

A．Knock

B．Knocking

C．Knocked

D．To knock

收藏答案/解析