90.(　　 ) To a doctor, the most important thing is _______.

　 　A. to save　　 b. saving　　　 C. to saving　　 D. saved

89.(　　 ) Can you tell me ________?

A. what are they doing that for　 B.why they are doing for

C. why are they doing that　 　　D. what they are doing that for

88.(　　 ) I’d like to have a nice room ____.

A. live 　　　B. to live 　　　C. to live in　 　　D. live in

87.( 　　) ___ Chinese people are _____ hardworking people.

　 　A. /,/　　　　 B. a,/　　　 C. The, the　　　 D. the,a

86.(　　 ) Don’t spend _____ time on computer games.

　 　A. too much　　 B. much too　 C. too many　 D. many too

85.(　　 )We found it difficult _____ there on time.

A. get 　　　　B. to get 　　C. getting　 　D. got

84.(　　 )The Brown flew to Kunming __ a sunny morning.

A. on　 　　　B. in 　　　C. for 　　　D. at

83.(　　 )The Changjiang River is longer than ____ in China.

　 　A. all the rivers 　B. any river C. any other river D. any other rivers

82.(　　 )Hurry up, please. There is only __ time left.

A. a little　　 　B. little　 　C. a few 　　　D. few

81.(　　 )It’s about fifty ___ from here to my school.　 A. minutes’ walk

B. minute walk 　　C. minute’s on foot 　　D. minutes’ on foot