4. Many national heroes are mentioned ( mention) in this new book.

3. —Can you help me think of some small inventions that changed ( change) the world?

—No problem.

2. Smart phones are use for surfing ( surf) the internet by many teenagers.

1. I think the Internet is one of the greatest inventions (invent) in the 201'1 century.

( A ) 10. The zipper is _ that we can see

zippers almost everywhere!

A. such a useful invention

B. so an useful invention

C. such an useful invention

D. a so useful invention

(D )9. Great Changes_in    Wuhan in the past

ten years.

A. are happening    B. are happened

C. were taken place    D. have taken place

(C ) 8.—Are you going to Yang Haifeng’s birthday party this Sunday?

—Unless I_.

A. am inviting    B.    will be invited

C. am invited    D.    will be invited

(C ) 7. 一Thanks so much for helping a lot!

A. It’s nice of you to say so

B. Oh,you’d better not

C. Not at all

D. With pleasure

(C ) 6. —It’s really nice of you    to give me    a    lift to

the airport!

A. It doesn’t matter    B. With pleasure

C. Don’t mention    it    D. My pleasure

(B ) 5. 一What do you think is the most useful

_in the 20丨h(huán) century?

—Computer,I think.

A. inventor    B.    invention

C. inventing    D.    invented