________should not be allowed to go out at night．
| A．Twelve-years-old |
| B．Twelve-year-olds |
| C．Twelve year old |
| D．Twelve years olds |
Be careful not to ______ your bike with so many heavy bags.
A. turn offB. take off C. fall off
I can't forget the timethe earthquake happened in Yushu.
A. when B. which C. where
- May I go to the movies with you?
- I'm afraid not，you have a ticket, because I have only one.
A． if B. unless C. though
Every year lots of treesto make our country more beautiful.
A. is planted B. are planted C. plant
- The girl __all her pocket money to the people in the Southwest for the serious drought(旱灾). - What a good girl!
A. took away B. gave up C. gave away