1. 你要去哪儿啊? Where are you _going____?

2. Nick 正在爬攀登架. Nick is __climbing___ (climb) the jungle gym.

3. 他们正在读书. They are _reading____ books.

4. 爷爷正在吸烟. Grandpa is __smoking___.

5. 我在做作业. I am ___doing__ (do) my homework.

6. 我妈妈正在做饭. My mother is _cooking____.

7. Jerry在喝柠檬果汁. Jerry is __drink_ing__ lemon juice.

8. 他正在写信. He is __writing___ a letter.

9. 看! Cindy来了. Look, Cindy is __coming____.

10. 我们在唱歌. We are ___singing__ now.