--When did your father come back last night?
--He didn't come back _______ he finished all the work.        
A. until                 B. while                  C. if

______ exciting news it is! Our government is doing something to stop the haze(雾霾).

A．What

B．What an

C．How

D．How an

__________ good advice the teacher gave me!

A．How

B．What a

C．What

D．How a

—Look out! Don’t run the red light when crossing the road next time.
—_______________.

A．You’d better not.

B．Yes, I’d love to.

C．Sorry, I won’t.

D．OK. I will.

根据所给提示，完成句子。每空一词，含缩略词。
小题1:He read the book several times.(改为否定句)
He __________ ________the book several times.
小题2:I got a letter from my pen pal last week.(同义句转换)
I ________ _________ my pen pal last week.
小题3:The teacher called Nancy is under the tree.(对划线部分提问)
__________ ________ the teacher called Nancy?
小题4:你最好7点准时到这儿。(完成译句)
You _______ ________ arrive here at 07:00.

—Shall we go for a hiking this weekend?
—All right,        it rains.

A．if

B．unless

C．when

D．until

—      go to bed too late, Lucy . — Sorry ,I won’t.

A．Not

B．Can’t

C．Not to

D．Don’t

—            ?—Because it’s really beautiful.

A．Where is the picture?

B．Do you like the picture?

C．Why do you like the picture?

D．What kind of picture do you like.

________Switzerland (瑞士) is very small , _______it is the land of watch and it is very rich.

A．Though; but

B．Because ; so

C．Because ; /

D．Though ; /

--- Would you come back to have dinner with us this evening?
--- I’d love to, ______ I have an important meeting .

A．and

B．or

C．so

D．but