–The lights in the classroom are still on.
--Sorry. I’ll go and ____.
| A．turn them off | B．turn them on | C．turn them down | D．turn them up |
Everyone in China tried ______ something for the Beijing Olympic Games.
| A．to do | B．does | C．do | D．did |
It’s hard to ________ this kind of plant. You have to water it every day.
| A．look for | B．look at | C．look after | D．look like |
I don’t think fast food is good for our health, so I _______ go to MacDonald.
| A．hardly | B．always | C．usually | D．often |
—_________ did he play soccer? —About 3 hours.
| A．How many | B．How much | C．How often | D．How long |
—Could you please help me do homework this afternoon?
—_________ I will be free after 2:30 in the afternoon.
| A．Sorry, I can’t | B．No, you can’t | C．Sure, I’d love to | D．Of course not |