补全对话，每空一词。
A:Can you help me,John?
B :Sure. __1___is it?
A :Can you show me your homework? I don't think I have time to do it. I'd
like to copy 2 .
B:Why do you want to do like that? Why not do it 3 yourself?
A :Because I had no time yesterday evening. I 4 an important soccer match
on TV.
B:I 5 think that is a good idea.
A:Why do you say 6 ?Just once.
B :Because it is a bad habit to 7
A:You mean you wouldn't like to help me?
B:_ 8 ,I'd like to,but I don't think it 9 for you to copy others' homework.
A:I'm sorry I got mad just now.
B:That's OK. 10 go to the classroom now. I think I can give you help right
now.
1. ________ 2. ________ 3. ________ 4 ________5. ________ 6. ________ 7. ________ 8________ 9________ 10. ________
（cm），则下列关于质点运动的说法中正确的是（ ）