－Have you finished _______ your composition? It is time to hand it in.

－Not yet, I _______ it the whole morning, but it is so hard that I only finished half of it.

A．writing; had written

B．write; wrote

C．written; was written

D．writing; have been writing

65岁男性，2小时前被汽车撞伤右髋部，疼痛，右下肢不能负重。入院后查体：右大转子上移2．0cm，右下肢真实长度与左下肢相同，右下肢相对长度较左下肢短缩2.0cm。右下肢活动受限，畸形。

该病人不能出现的病情是（）。

A.髋臼骨折

B.髋关节后脱位

C.股骨颈头下型骨折

D.股骨颈基底部骨折

E.股骨上段骨折