Don’t watch TV________school nights．
| A．at |
| B．in |
| C．/ |
| D．on |
Alice usually does her homework at 5:30 in the afternoon.
A.never B.most often C.sometimes
When the bell rings, we all go to the classroom to have class.
A.stops working
B.makes a sound
C.cries for help
I would like to be your penfriend.
A.wantB.like C.hate
Many factories poured out dirty water and polluted the Pearl River.
A. made ... clean
B. made ... full
C. made ... dirty
Timmy is good at designing 3D computer games.
A. does well in
B. learns about
C. Enjoys