Today the forests are getting fewer and fewer. We must _______ down too many trees.
| A．keep people from cutting | B．prevent people from cutting |
| C．stop people cutting | D．all the above |
I decided to write rather than________.
| A．telephoning | B．telephoned | C．telephone | D．telephones |
—It’s necessary ____ our environment(环境). —I agree with you.
| A．protect（保护） | B．protecting | C．to protect | D．protects |
I have _______ sugar, so I have to buy some.
| A．run out of | B．use | C．ran out of | D．used |
_______, what’s your hobby?
| A．In the way | B．On the way | C．To your way | D．By the way |
-How careful Jim is! - He writes ____ in our class.
| A．more careful | B．most carefully | C．most careful | D．more carefully |