30.---Do you mind if I turn down the radio?

　 ---______________. The breaking news will be broadcast in a few minutes’ time.

A．I am afraid I do 　　　　　　　　　　　　　　 　　　 　　　B．Of course not

C．Never mind　　　　　　　　　　　　　　 　　　　　　　 　 D．Yes, just go ahead

29. ---Oh, my god! I can’t even recognize you. You are much healthier than before.

　 ---If I ________ exercise, I wouldn’t be so healthy like this.

A.　　　 hadn’t taken up　　　　　 　　　　　　　　 　B．haven’t taken up

C.　　　 shouldn’t have taken up　　 　　　　　　　 　D．wouldn’t have taken

28. They were speaking in such a low voice that I couldn’t ______ what they were talking about.

　 A．bring about 　B．give away　　　　　　 　　 C．make out　　　　　　　　　 D．draw up　

27. I wondered ______________________________.

A．what does he think of the result 　　　　　　　 　　　　B．what he thinks of the problem

C．how he dealt with the problem　　　　　　　　　　　　 D．how did he like the result

26. Look! The classroom is so clean and well decorated．They ______ a busy morning．

　 A．should have had　 　　　　　　　　　　　　　　　　　　　　 B．must have had　 　　　

C．needn’t have had　 　　　　　　　　　　　　　　　　　　　 D．mustn’t have had

25. Some drivers run traffic light or drive drunk,________ the traffic regulations .

　 A．to ignore　　　　　　 　　　 B．ignoring 　　　　 　　　 C．having ignored　 　　 　D．and ignore