7．You can look up the word in the _________ (词汇) list.

6．In the northeast of China the _________ (温度) stays below zero in winter.

5．I don't third', sixteen-year-olds should be allowed to get their ears p_________

4．Every Sunday as volunteers we often go to the l_________ hospital to help the sick people.

3．We didn't believe he can a_________ his dream.

2．Is it n_________ to call their parents when the students cause trouble at school?

1．It's our duty to keep the e_________ clean.