Alan is a careful driver, but he drives _________ of my friends.

A. more carefully   B. less carefully  C. the most carefully  D. the least carefully

–You can’t imagine _______ great fun chatting online is.

 – Really? But it may cause you a lot of trouble.

A. what       B. how         C. why        D. whether

One of the most interesting places in Hangzhou ________ are often visited by foreigners is the West Lake.

A. what             B. who          C. that         D. /

–Tom, you didn’t come to my party last night?

 – I ________, but my mom hurt her back and I had to look after her.

     A. had to    B. didn’t        C. wouldn’t         D. was going to

Their school looks quite different from _______ ten years ago.

A. what it was    B. that it was    C. what was it    D. that was it

We must try our best to stop pollution ______ a low-carbon(低碳)life.

A. from living    B. to live     C. living     D. live

–I think honesty is the most important thing in doing everything.

–__________ .

A. All right    B. Never mind     C. I think so, too    D. Yes, please

Four hundred dollars for just a pair of shoes? You ______ be joking!

A. may       B. can        C. can’t      D. must

The water ______ cool when I jumped into the pool for morning exercise.

     A. was felt    B. is felt      C. felt       D. feels

–Nancy, how long does it take you to fly to Canada?

  –Sorry, I don’t know. But I can telephone my father to _____ it for me.

     A. do       B. check      C. catch      D. find