男，50岁，患痔多年，突感肛门剧痛，排便、走路、咳嗽时疼痛加剧，检查：肛门部有一圆形肿块突出与周围分界清楚，有触痛，为（）

A.内痔嵌顿

B.内痔合并感染

C.外痔血栓形成

D.直肠息肉脱出

E.肛旁皮下脓肿

— Where are my trousers?

— _____ on the bed. [ ]

A. It's

B. They're

C. They were

D. It was