— It is so hot in the classroom. Would you mind ____ the windows?
—OK. I’ll do it right now.
| A．not closing | B．not opening | C．opening | D．closing |
They________to Tibet many times．
| A．are |
| B．were |
| C．have been |
| D．has been |
Most of the young people can hardly speak any Chinese，________?
| A．can he |
| B．can’t he |
| C．can they |
| D．can’t they |
He likes watching the children________football．
| A．play |
| B．to play |
| C．playing |
| D．plays |
—Why were you late for school?
—Because my bike________on the half way．
| A．broke down |
| B．broke off |
| C．turned down |
| D．turned off |
The teacher________the office for a few minutes when we arrived．We didn’t meet him．
A．have left
B．had left
C．had been away from