21、Two large buildings have been built in our school,          stands nearly 50 meters high.

A. the larger                                               B. the larger of them

C. the larger one that                                             D. the larger of which

20、——She looks rather upset. She          have failed the exam.

——I guess so. It's very difficult after all.

A. could               B. should                C. must                 D. might

19、You should read such books      you can understand without much difficulty.

A. which               B. that                C. as                            D. those

18、Do you believe his reason for being absent from class          he had to meet his uncle at the airport?

A. why                B. that              C. where            D. because

17、The slogan, "One World, One Dream",          the Olympic spirit of using sports to promote peace and understanding.

A. experiences          B. expresses                 C. declares                  D. performs

16、Sometimes failure          determination.

A. results from lack of                        B. results in lack of

C. results from lack in                                            D. results in lack in

15、Mary speaks better English than the others, but she has a (n)          because her mother is        English.

A. condition             B. personality          C. similarity             D. advantage

14、David is organized, easy-going, and intelligent         , I can't speak too highly of him.

A. In other words       B. On the other hand          C. In a word            D. As a result

13、Do clothes iron          when they are damp?

A. easily                B. very easy              C. more easily          D. easier

12、——How did you get in touch with Mrs. Green?

——Well, it seems that you've forgotten          me her telephone number the other day.     A. to tell                B. telling                  C. to have told         D. being told