When you want to work for our country in the future, ________,we should have strong body and rich knowledge.

[　　]

A. at first

B. first of all

C. for the first time

D. after all

The teacher asked us ________ so much noise.

[　　]

--I drove to Zhuhai for the air show last week.

--Is that ________ you had a few days off?

[　　]

I know nothing about the young lady _________ she is from Beijing.

[　　]

Many people agree that ________ knowledge of English is a must in ________ international trade today.

[　　]

The reason _________ I plan to go is _________ she will be disappointed ________ I don't.

[　　]

A．why;because;when

B．that;that;if

C．because;that;if

D．why;that;whether

-- I rang you at about ten,but there was no reply.

-- Oh,that was probably ________I was seeing a doctor.

[　　]

With prices ________ up,it is difficult for him to make both ends ________.

[　　]

I was made to write a letter in English,but I don't know _________.

[　　]

A．what to write about

B．how to begin with

C．how to write about

D．what to begin

Li Ming seldom watches TV in the evening _______ he has nothing to do.

[　　]