请据图回答，经数小时后U形管A、B两处的液面会出现下列哪种情况(实验装置足以维持实验期间小白鼠的生命活动，瓶口密封，忽略水蒸气和温度变化对实验结果的影响)

A．A处上升，B处下降

B．A、B两处都下降

C．A处下降，B处上升

D．A、B两处都不变

The professor kept telling us that the future _____ to the well-educated and I kept wondering

where I _____ of it.

A．would belong; heard

B．belonged; had heard

C．was belonged; heard

D．was belonging; had heard