排列句子順序,使其成爲一個完整的小對話(英語）

題目：

排列句子順序,使其成爲一個完整的小對話(英語）
( ) That's too bad.Exercise is really important.
（ ） Okay.I really need to be fit again.
（1 ）Bobby,what do you do for exercise?
（ ) I know.I'm getting a little fat.I didn't use to be this heavy.
（ ） I used to swim when I was in high school,but now I don't have time any more.
（ ） I go swimming once a week.How about you?
( ) Well,I'm going swimming tonight.Do you want to go with me?

解答：

( 4 ) That's too bad.Exercise is really important.
（ 7 ） Okay.I really need to be fit again.
（1 ）Bobby,what do you do for exercise?
（5 ) I know.I'm getting a little fat.I didn't use to be this heavy.
（ 3 ） I used to swim when I was in high school,but now I don't have time any more.
（2 ） I go swimming once a week.How about you?
( 6 ) Well,I'm going swimming tonight.Do you want to go with me?