—Must we sweep the floor right now?
—No , you ________.You can do it later
A. mustn’t
B. can’t
C. don’t have to
Gao Yan is__________ Zhao Fen and Li Min.
| A．in front of | B．behind | C．between | D．on the right |
__________ chocolate isn’t good for you.
| A．Too much | B．Too many | C．Much too | D．Many too |
—How many __________ are there in your class？
—Twenty-two.
| A．boy | B．boys | C．boyes | D．boies |
My mother is __________ English teacher in a middle school.
| A．a | B．an | C．the | D．不填 |
Those__________ my parents.
| A．am | B．is | C．are | D．Can |