Do you know a spaceship flies at about nineteen kilometers second ?
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