---Can you hear a girl ____ next door, Miss Zhou? ---Yes. How beautifully!
| A．sing | B．to sing | C．singing | D．Sings. |
Could you please speak a little ？ I can't follow you.
| A．quickly | B．more quickly | C． more slowly | D．slowly |
All of us must do_______ to help protect the environment，or we will have more hazy weather雾霾天气.
| A．something useful | B．anything useful | C．useful something | D．useful nothing |
I don’t like bread. I won’t eat it_____________ I am much too hungry.
| A．if | B．when | C．because | D．unless |
---Dad, must we wait until the light becomes green?
---Yes,I’m afraid we.That’s the traffic rule.
| A．can | B．may | C．have to | D．need |
You don’t know how difficult the job is,you have done it yourself.
| A．unless | B．since | C．if | D．because |