3. You are very       to our home. ( welcome；welcomed)

4.       do you think of the food in the restaurant? (What；How)

5. The sky is dark when night       .(fall；falls)

1. I'm sorry,sir. I       my homework at home. ( forgot ；left)

2. You are the best students with good       and brains.(look；looks)

5. 从黎明到黄昏我从未停止过。

      dawn       dusk,I never stop.

4. 我清扫人们扔下的东西。

I              things that people drop.

3. 我们帮助维持我们城市的安全。

We help       our city       .

2. 低头思故乡。

Lowering my head,I’m             my home town.

1. 疑是地上霜。

It             frost on the ground.

9. 一份危险的工作      

10. 升起      

7. 想起      

8. 写诗      

5. 维持我们城市的安全      

6. 表达他们的情感