Everyone is supposed a seat belt in the car.A. wearing B. to be worn D.wear D. to wear

问题补充：

Everyone is supposed a seat belt in the car.

A. wearing B. to be worn D.wear D. to wear

答案：

解析：句意：每个坐车的人都要求系安全带。短语be supposed to do sth.被要求做某事，故选D。