581.There were two small rooms in the beach house, ___ served as a kitchen.

A. the smaller of which　　　　 B. the smaller of which

C. the smaller of them　　　　　 D. a smaller of which

580. He had ____ little education that he can’t teach ____ little children.

A. so, such　　 B. such, such　　 C. so, so　　 D. such, so

579. We have a lot of work ____ every day.

A. do　　 B. to do　　　 C. to be done　　 D. doing

578. Great changes _____ since 1984.

A. have been taken place　　　 B. were taken place

C. have taken place　　　　　　 D. took place

577. We _____ around the Palace Museum by a girl.

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

576. The patient needs ______ at once.

A. to be operated　　 B. operating on　　 C. operate　 D. to operate on

575. –He seems to be a teacher.　　 --_____. He has been a teacher for 20 years.

A. So he does　　 B. So does he　　 C. So he is　　 D. So is he

574. I can see some boys ___ on the playground now.

A. to play　　 B. play　　 C. playing　　 D. were playing

573.The teacher was angry ____ me ____ my being late.

A. of, for　 B. with, for　　 C. to, for　　 D. with, to

572.I don’t want to make new problems ____　 you because I know you have problem ___ your own work.

A. for, with　 B. with, for　　 C. of, with　　 D. to, with