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、spare                            A. fear                  B. earn                  C. beard                D. pear

23、 thin                            A  they                 B. there                 C. thus                  D. theory

22、motto                           A. honour              B. tomato              C. consider            D. complete

21、lose                              A. worse               B. loose                 C. nose                 D. house