Did you see the sign "No Swimming"？You ______swim in this river．（ ）
A．needn'tB．mustn't
C．don't have to
We have lunch_____ school from Monday to Friday．（ ）
| A． |
on |
B． |
at |
C． |
with |
Robots usually do work in factories．（ ）
| A． |
heavy |
B． |
heavier |
C． |
heavily |
You can ask some questions by telephone．（ ）
| A． |
he |
B． |
him |
C． |
his |
Tony's father is a ．（ ）
| A． |
teachers |
B． |
doctors |
C． |
driver |
We should encourage the children to go outside instead of playing computer games at home．
．Playing computer games too much is bad for their studies．（ ）
| A． |
I agree with you |
B． |
I don't think so |
| C． |
I'm afraid not |
D． |
I have no idea |