子宫腺极度弯曲，腺腔膨大，内含富有糖原的分泌物，相当于子宫内膜周期中的哪一期（）

A.排卵期

B.增生早期

C.增生晚期

D.分泌期

E.月经期

It seems that it is going to rain. You'd better            the windows open when you leave the house. [ ]

A. not leave

B. leave

C. not to leave

D. to leave