1. 选词填空

as a matter of fact,  make a bet,  in return,  by accident,  be about to, take out a loan,  on the basis of, to be honest,  care about,  ought to

1. （1） We drew this conclusion  experiments.
3. （2） , I don't like the course, but I must take it.
5. （3） The boy has reached an adult age and  be earning his own living.
7. （4） We grabbed it just as it  tip over.
9. （5） He appears to be strong and healthy,  but,  , he suffers from a very weak heart.
11. （6） I found the key  when I was cleaning the room.
13. （7） , he received gifts worth roughly half that amount.
15. （8） I'm still living in a rental apartment because I didn't want to  I couldn't pay back.
17. （9） I  that we would win the football match.
19. （10） You don't  anything but yourself and your precious face.