句型转换。

1. We should exercise to keep healthy. (改为同义句)

    We should exercise to _________ healthy.

2. To eat a balanced diet is very important.(改为同义句)

    _________ very important _________ eat a balanced diet.

3. She has a sore throat. (改为同义句)

     There is something _________ _________ her throat.

4. There is a lot of milk in the bottle.(改为同义句)

    There is _________ _________  milk in the bottle.

在高速公路上，当遇有浓雾能见度极低时，（）

A.应立即紧急制动停车

B.打开前照灯继续行驶

C.应尽可能的在停车场或服务区暂避或暂时停靠在应急停车带或路肩上

D.打开防雾灯继续行驶