1. The substance does not dissolve in water _____ (不管是否加热).
　　2. Not only _____ (他向我收费过高), but didn't do a good repair job.
　　3. Your losses in trade this year are nothing _____ (与我相比).
　　4. On average, it is said, visitors spend only_____ (一半的钱) in a day in Leeds as in London.
　　5. By contrast, American mothers were more likely _____ (把孩子的成功归因于) natural talent
　　6. There is no rush now —— _____ (比赛已经取消了).
　　7. I'm not supposed to let anyone in without a card, _____ (但对你我就破一次例).
　　8. _____ (我们得把休假日推迟) until you're better.
　　9. Don't bother carrying all those things, _____ (我本不想给你添许多麻烦).
　　10. _____ (我不大想去参加那个聚会), but I'd better put in an appearance.
　　11.__________________ (直到失去健康) that people know the value of health.
　　12. The bag was stuffed____________________( 脏衣服)
　　13.___________________ (很多朋友不在)， we decided to put the meeting off.
　　14._______________________ (给我印象最深的) were her liveliness and sense of humor.
　　15. There engines are___________________ (不如我们制造的那些发动机功率大) .

　　Answer:
　　1. whether (it is) heated or not
　　2. did he charge me too much
　　3. compared with mine
　　4. half as much (money)
　　5. to attribute their children's success to
　　6. the match has been called off
　　7. but I'll make an exception in your case
　　8. We'll have to put off (going on) vacation
　　9. I didn't mean to give you a lot of trouble
　　10. I don't really want to go to the party
　　11. It is not until they lose it
　　12. with dirty clothes
　　13. With many friends absent
　　14. What impressed me the most
　　15. less powerful than the ones we have made