A. 练习 V. Structure using as

Combine each of the following groups of sentences intoone, using as.

Model
Original sentence:	Sandy sang along with the words. At the same time, she lay listening to her favorite radio station.
Rewritten as:	Sandy sang along with the words as she lay listening to her favorite radio station.
Or:	As she lay listening to her favorite radio station, Sandy sang along with the words.

Kate saw her brother Bill. At the same time she was getting off the school bus.

Mother was standing up from her seat. At that time she dropped her glass.

A policeman fired at a thief. The thief was bolting out of the house at that time.

Sandy ran to catch the school bus. At the same time she thought of her talk with her mother.

The teacher entered the classroom. All the students shouted "Happy birthday" to him.