作业4：Fill in the blanks with the expressions given below. Change the forms where necessary.even if at first worry about grow up make a difference to make friends with keep up with track down set the stage for at one’s best happen to adjust… to 1. If you don’t succeed, try, try again. 2. The boy said that he wanted to be a computer scientist（科学家） when he . .3. To

作业4：Fill in the blanks with the expressions given below. Change the forms where necessary.
even if at first worry about grow up make a difference to
make friends with keep up with track down set the stage for
at one’s best happen to adjust… to
1. If you don’t succeed, try, try again.
2. The boy said that he wanted to be a computer scientist（科学家） when he .
.
3. Today young people from different countries can easily one another through email.
4. Everything is developing（发展） so quickly in today’s world that I am afraid I can’t all the changes.
5. Did you hear what David last night?
6. Tom spent an hour in the library and finally the book he wanted.
7. I wouldn’t lose courage I should fail ten times.
8. Exercise can to your state of health.
9. This weekend’s talks between the two leaders have a peace agreement to be reached.
10. If you feel cold, you can the temperature in the room your taste.
11. Most athletes are during their youth.
12. Your parents you: do write to them.