句型转换。

1. He listened to the teacher very carefully. (改为一般疑问句)

           _   he      _   to the teacher very carefully?

2. Anna and Tom are good at Chinese. (改为同义句)

          _   Anna      _   Tom are good at Chinese.

3. They have planted thousands of trees these years. (对划线部分提问)

           _   trees have they planted these years?

4. This TV play is meaningful ,but that one is not. (合并为一个句子)

    This TV play is       _          _   than that one.

5. David plays basketball better than any other boy in his class. (改为同义句)

    David plays basketball      _           _    in his class.

（）是全球卫星定位系统的功能。

A：车辆监控

B：反劫防盗

C：导航

D：最优路径向导

E：倒车防撞