With the help of the smart phones, you ____ video chat with your friends on the phone.
| A．can | B．must |
| C．need | D．should |
Will you please _______ the TV?I want to see the Animal World.
| A．turn off | B．turn down | C．turn on | D．turn up |
They didn’t go to bed ________ they finished their homework.
| A．when | B．because | C．until | D．if |
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 |