Shanghai is one of  _______ in the world .

A. more big city             B. the biggest city

C. the biggest cities         D. the most big city

—Do you know when        back?

—I don’t know. But if he         back, I will call you.

A. will he come, comes

B. he will come, comes

C. he comes, will come

I won’t go to tomorrow’s party________I am invited．

A．if              B．unless           C．when

________you read it，you can’t imagine how moving the story is．

A．Unless              B．Because         C．Although

The girl is afraid to dance in public because she thinks others may________her．

A．laugh at               B．wait for

C．hear of                D．agree with

Betty will ring me up as soon as she ________ in Shanghai.

A. arrive               B. arrives

C. arrived              D. will arrive

—Are you interested________Western culture？

—Yes，I am．

A．on                    B．at

C．in                    D．for

I fell in love with Hangzhou when I went there________the first time．

A．at                     B．with

C．for                    D．in

-----Could we go and watch the football game?

The poor woman is very worried——_________little food for______ many children.

A.Such；so               B.So；so

C.Such；such             D.So；Such

The teacher won’t begin the class ______ all the students ______.

A. until ; stop to talk        B. until; stop talking

C. if; stop to talk           D. if ; stop talking