29. The bus driver insisted that he ________ at a normal speed and therefore ________ for the child’s death.

　 A drove, shouldn’t answer　　　　　　　 B was driving, shouldn’t answer

　 C should drive, should have answered　　　 D drive, not answer

28. As regards health, I have nothing ________ to say since I have ___________ of illness

　 A useful, few experiences　　　 B use, little experience

　 C to use, some experience　　　 D useful, little experience

27. Charles Babbage is generally considered ___________ the first computer.

　 A to invent　　 B inventing　　 C having invented　　 D to have invented

26. Enough attention should be paid to ________ your pronunciation and intonation.

　 A improving　　　 B improve　　　 C being improved　　　 D to improve

25. Whom did the teacher __________ the essay?

　 A have written　　　 B have to write　　　 C have write　　　 D write

24. I don’t like the way __________ you listen with your mouth half open.

　 A that　　　　 B which　　　 C how　　　 D what

23. He made another wonderful discovery, ________ of great importance to science.

　 A which I think is　　　　　　 B which I think it is

　 C which I think it　　　　　　 D I think which is

22. We are advised that everyone ______ up before six in the morning.

　 A get　　　　 B gets　　　　 C getting　　　 D would get

21. Mary could not have accepted the invitation, __________?

　 A has she　　　 B was she　　　 C could she　　 D had she

20. In such dry weather, the flowers will have to be watered if they __________.

　 A have survived　　　　　　　 B are to survive　　

C would survive　　　　　　　 D will survive