We should do some things to protect the environment．For example，we shouldn’t________too many trees．
| A．cut down |
| B．write down |
| C．grow up |
| D．pick up |
—Remember this，children．________careful you are，________mistakes you will make．
—We know．Mr.Li．
| A．The more；the more |
| B．The fewer；the more |
| C．The more；the fewer |
| D．The less；the less |
—Which is________，the sun，the moon or the earth？
—Of course the sun．
A．smaller
B．the smallest
C．the biggest
—What’s the________of these vegetables？
—It’s about 3 kilos．
| A．size |
| B．color |
| C．price |
| D．weight |
The apples on this tree are bigger than________on that tree．
| A．this |
| B．that |
| C．those |
| D．ones |