Simon heard his neighour ______ for help at night. [ ]

A. calls

B. call

C. calling

D. to call

宫颈在 * * 口处（）

A. * * 壁肿物

B.子宫内翻

C.子宫脱垂

D.宫颈息肉

E.子宫黏膜下肌瘤