关于平抛运动下列说法中正确的为（　　）

A．平抛运动为匀变速曲线运动

B．平抛运动为变加速曲线运动

C．平抛运动为匀速曲线运动

D．竖直方向、水平方向都是匀加速直线运动

句型转换。

1. It seemed that the parents felt very happy over the progress of the girl (改为同义句)

    The parents ______ _____ feel very happy over the progress of the girl.

2. I paid 200 yuan for that bike. (改为同义句)

    I ______200 yuan ______ that bike.

3. The man has been dead for 40 years. (改为同义句) 

    ______ 40 years ______the man died.

4. She didn't live here any longer. (改为同义句)

    She ______ ______lived here.

5. She used to have short hair,______ ______? (改为反意疑问句)