We work together to achieve our common purpose： ________ world that is safer， cleaner and healthier than ________ one we are living in.

A. the ； / B. a ； /

C. the ； the D. a ； the

The number of people present at the concert was ________ than we expected.

A. much fewer B. much smaller

C. much more D. many more

The old woman has something wrong with her eyes and has to have them______.

A. operated on B. operated

C. operate D. operate on

It’s reported that several hundreds of young children have gone _________in our country, and their parents feel very sad about the _______ of them.

A. miss, loss B. missing, loss

C. missed, loss D. missing, lost

—The exam was very easy, wasn’t it?

—Yes, but not ________ could pass it.

A. somebody B. anybody

C. nobody D. everybody

Wild animals are our friends. We shouldn’t kill them food or clothing.

A. in B. with

C. about D. for

Helen is friendly and she always has a smile _____ her face.

A. on B. with

C. at D. for

— _______ have you lived in Lanzhou?

— Since my parents found jobs here.

A. How long B. How far

C. How soon D. How old

— I wonder if this smart phone is Mary’s.

— It _______ belong to her. _______ is totally different from this one.

A. mustn’t; Her B. can’t; Her

C. can’t; Hers D. may; Hers

We _________wait until the traffic light turns green when we cross the road.

A. must B. can

C. need D. may