对话填空 (共10小题；每小题1分，满分10分)

A: He is very good, isn’t he?

B: Sorry, what did you say?

A: I 小题1:s__________ the singer was great.

B: Yes, and interesting to watch.

A: Have you seen him here 小题2:b_________?

B: Oh, yes. He’s always at 小题3: e__________ the same place on Saturdays when I come into town. I think he probably 小题4:w__________ the music and words by himself, 小题5:b________ I’ve 小题6:n________ heard any of the songs before.

A: It’s not fair

B: What do you 小题7:m__________?

A: People with musical ability 小题8: l_________him have to stand around here to make a living.

B: Perhaps he enjoys 小题9:i_________ or more money than you think.

A: I 小题10: h_________ so.

当材料强度、硬度低，钻头直径小时宜选用（）转速。

A、较低

B、较高

C、不变

D、变快