My mother________in the kitchen now．
| A．cook |
| B．cooks |
| C．is cooking |
| D．cooked |
Let's stop for a few minutes. I'm tired to walk any farther.
A. so B. enough C. too
We a party to welcome the new students next Friday evening.
A. have B. had C. will have
--- Why do you tennis for exercise?
--- To keep healthy.
A. take up B. grow up C. stay up
My shoes are cheaper than ________.
A. you B. your C. yours
In our school, _ students ride their bicycles to school every day.
A. three hundreds B. hundred of C. hundreds of