19. I can think of many cases _________ students obviously knew a lot of English words and expressions, but couldn’t write a good essay.

　 A why　　　　　 B which　　　　　 C as　　　　 D where

18. On hearing the news of the accident in the coal mine, she ________ pale.

　 A got　　　　　 B changed　　　　 C went　　　 D appeared

17.There were dirty marks on her trousers _________ she had wiped her hands.

　 A Where　　　　 B which　　　 C when　　　　 D that

16. _________ two exams to worry about, I have to work really hard this weekend.

　 A With　　　　　 B Besides　　　　　 C As for　　　　 D Because of

15. The flowers __________ sweet in the botanic garden attract the visitors to the beauty of　 nature.

　 A to smell　　　　 B smelling　　　　　 C smells　　　　　 D to be smelt

14. __________ the meeting himself gave them a great deal of encouragement.

　 A The president will attend　　　　 B The president to attend

　 C The president attended　　　　　 D The president’s attending

13. The reason _________ he didn’t come was _________ he was injured.

　 A that, because　　 B why, that　　　　 C why, because　　　 D that, that

12. The girl likes maths and chemistry, ________ is easy for her to learn.

　 A each of them　　　　　　　　 B but neither of which

　 C each of which　　　　　　　 D neither of them

11. I, _____ your good friend, will try my best to help you out.

　 A who’s　　　 B who am　　　 C that’s　　　　 D which am

10. Some pictures of the river brought the days back to the old _________ many people swam in it.

　 A when　　　 B that　　　 C who　　　　 D where