The boy is ________ to go to school.
| A．enough old | B．enough young |
| C．young enough | D．old enough |
Mr. Green told us _____ turn the lights off when we leave the classroom.
| A．not forget to | B．not to forget |
| C．not to forget to | D．to forget not to |
Will you write a report ____ the wild animals ____ danger for the newspaper?
| A．about, on | B．on, in | C．to, from | D．in, with |
We must hurry up. We only have few minutes _______.
| A．left | B．leaving | C．to leave | D．Leave |
—Now lots of teenagers spend a lot of time playing computer games.
—Yes. Teachers and their parents should prevent them ____________ too much.
| A．to play | B．play | C．plays | D．playing |
Is Zhalong one of the world’s ________?
| A．important wetland |
| B．the most important wetlands |
| C．most important wetlands |
| D．more important wetlands |