Many accidents by careless drivers last year.
| A．are caused | B．were caused |
| C．have caused | D．will cause |
They put their books____to make the library clean and tidy.
| A．under the chair | B．on the floor | C．behind the door | D．in the bookcase |
There____some bread. Would you like to try it?
| A．is | B．are | C．has | D．have |
My father lost ____keys. Now he can’t get into the house, the office or the garage (车库).
| A．a pair of | B．a piece of | C．a cup of | D．a set of |
Tomorrow we are going to Xixi National Wetland Park. Let’s____at the gate on Wensan Road.
| A．meet | B．email | C．call | D．help |
Uncle Tetsu（彻思叔叔）cheese cakes sell well____they are so nice.
| A．because | B．so | C．but | D．and |