When something ________ me, I can always go to my friends for help.
| A．worry | B．is worried |
| C．worries | D．worried |
Ｉdidn’t go to bed _______ I finish my homework.
| A．after | B．when | C．if | D．until |
The boys don’t know ___________.
| A．how do they swim |
| B．how swim |
| C．they how swim |
| D．how to swim |
— You didn’t use to play tennis, ______?
— Yes. I still like playing tennis now.
| A．didn’t you |
| B．did you |
| C．weren’t you |
| D．were you |
__ they were not rich, they tried their best to send their child to the best school.
| A．However | B．Because | C．Even though | D．So |
Smoking is bad for your dad’s health.
You’d better ask him to ______.
| A．give up it |
| B．give it up |
| C．take out it |
| D．take it out |