Mary is said _____ in the supermarket for 5 years, but I don’t know why she resigned last month.

A．to have been working

B．work

C．to be working

D．to have worked

以下哪项是大豆发酵制品（）。

A.豆浆

B.腐乳

C.豆腐

D.豆腐干

E.腐竹