91.(　　 ) Three years _______ a　 long time for us students.

　　　　 A. are　　　　 B. be　　　　 C. is　　　 D. have been

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