— I didn’t go to class last night because my car broke down.

— You            mine. I wasn’t using it.

A．should borrow

B．might have borrowed

C．could have borrowed

D．must have borrowed

二陈汤原方注明煎煮时加乌梅一个，其用意是（）

A.收敛肺气，以助排痰之力

B.收敛肺气，以防燥散伤正

C.生津润燥，以防辛燥伤阴

D.润肺止咳，以增止咳之效

E.敛肺涩肠，以防肺气下泄