() 2. — Would you like  the environment?

—Yes,I'd like to.

   A. help protect   B. helping protect

   C. to help protecting   D. to help protect

() 1. (2015 •重庆) It's getting dark. Would you please  the light?

   A. get on   B. get off   C. turn on   D. turn off

5. It's wise of you (change) your plan now.

4. People can do something good for our earth by (ride) bicycles.

3. Will the meeting (put) off to next week?

2. My grandfather likes (dig) in the garden every day.

1. Please remember (turn) off the lights when you leave,Lucy.

5. You must solve it well,because it's a (严肃的) problem.

4. Noise pollution has (导致) a lot of trouble.

3. You are (明智的) enough to take a map and a mobile phone with you.