在系统性红斑狼疮的肺脏受累中，最常见的为（）

A.胸膜炎

B.间质性肺炎

C.急性狼疮肺炎

D.肺动脉高压

E.肺栓塞

On Sunday when I was a child, my father and I _________ get up early and go fishing.

A．could

B．would

C．might

D．should