31、Peter, together with his parents _________ every Sunday.

A. went hiking      B. go hiking        C. goes hiking       D. hiking

30、---The Bird's Nest, isn't it?

---Yes. It's ___________we visited during our stay in Beijing.

A. where       B. what         C. when        D. that

29、 The discussion __________alive when an interesting topic was brought in.

A. was coming             B. had come         C. has come       D. came

28、It was not until everybody was present __________the party started.

A. that                  B. what                  C. when               D. where

27、---Did you have _______fun in Australia?

--- Sure. It was ___________ unforgettable experience.

A. a; an        B. 不填；the     C. the; an         D. 不填； an

26、 --- How is the project going?

--- Fairly well. We have ___________the best solution.

A. looked up         B. worked out         C. put away         D. got off

25、--Sarah, I don't know how to fill out the form. I wonder if you could help me.

--_______.

A. With pleasure       B. Go ahead         C. Me, too       D. My pleasure

24、Your article must be sent by e-mail          it can meet the deadline.

    A. or else    B. so that    C. in case    D. for fear

23、          is mentioned above, it won't be long before you regret what you have done.

    A. Which    B. That    C. As    D. It

22、A severe drought        to hit several regions in the country in February，      at least 3. 7 million people short of water and endangering crop yields.

    A. has continued; having left      B. continued; leaving

    C. continued; and left               D. was continuing；to leave