3. It rained for the whole week,completely to ruin the crops.

2. While being reading the book,he nodded from time to time.

1. Seen from the top of the hill,we can get a full view of the country.

5. 除了做饭外，她还得照顾四个孩子。

               ，she had to take care of four children.

4. 他已经离开10年了，发现家乡变化巨大。

           for ten years,he found his hometown greatly changed.

3. 她看了看我的画，没有表现出任何兴趣。

She looked at my picture,        .

2. 他突然站起来，冲了出去。

       suddenly,he rushed out.

1. 当看电视时，我们听到有人在按门铃。

       ，we heard the doorbell ring.

5. The boys and girls entered the classroom and they sang and danced. 

The boys and girls entered the classroom,        and      .

4. Because we didn't know her address,we couldn't get in touch with her. 

          her address,we couldn't get in touch with her.