4. 一些人正在公园唱歌，另一些人正在跳舞。

In the park, ________ are ________ songs, ________ are ________.

3. –天空正在下雨时，你在干什么？　 -我在看书。

-What are you ________ when it’s ________?　 -I am ________ a ________.

2. 我们正在巴黎街头漫步，那里阳光明媚。

We are in Paris, ________ in the ________. It’s ________ beautiful, ________ day.

1. 有很多人在这儿度假。

There are ______ ________ here ______ ________.

5. It’s pretty good. (划线提问)

4. They are cleaning the classroom. (改为一般疑问句)

3. The students are having an English class. (划线提问)

2. It’s snowy today. (划线提问)

1. How’s the weather in Wuhan?(同义句)

15. -- Where is Sam? Do you know? -- Look! He’s ______ on the beach. How cool!

　　 A. swimming　　 B. lying　　 C. looking　　 D. having