______ you keep trying till the end, you will never know how strong you are!
| A．Although | B．If |
| C．Unless | D．Because |
________children there are in a family．___there life will be.
A. The less; the better
B. The fewer; the better
C. Fewer; richer
–Do you often get online?
-Yes. I___ lots of time on it. It’s a good way to kill time.
A. cost B. spend C. take
–What do you often do _____classes to relax yourselves?
---We often do eye exercises. Listen to music or do some running around the school.
A. in B. among C. between
Many people do not realize the importance of health___they have fallen ill.
A. until B．while C．when
–When _____for Australia, do’you know?
-I’m not sure. When he ______ . I’II let you know.
A. he leaves; leaves
B. will he leave; will leave
C. will he leave; leaves