--You've agreed to go? So why aren't you getting ready?

--But I ________ that you would have me start at once.

A．don't realize

B．hadn't realized

C．didn't realize

D．am not realizing

( )的投资份额是可以不固定的。

A．封闭式基金

B．契约式基金

C．开放式基金

D．公司型基金