根據(jù)對(duì)話內(nèi)容， 在方框中選擇適當(dāng)?shù)木渥友a(bǔ)全對(duì)話。（5分）

（ Kangkang: K　　　　　 Michael: M　 ）　

M：What are you doing?

46

K : __________________ .

M：What’s the matter with it?

47

K : ____________ I pressed the “ON” button but nothing happened.

M：Well, are you sure you plugged it in?

48

K : ______________________________

M：You’d better ask our computer teacher for help.

49

K: ____________________ But I’m not sure whether he is free.

M: Don’t worry. He’ll be glad to help you.

50

K: _________________ He is always warm-hearted.　　　　　

	A． I think so. B． I will. Thank you. C． I’m repairing my computer. D． It doesn’t work. E. Of course. But it’s useless.