— How much of his speech do you think you have understood?

—________. I wish I had worked harder.

A．Quite a few

B．Very few

C．Next to nothing

D．Quite a lot

从所给的四个选项中，选择最合适的一个填入问号处，使之呈现一定的规律件（）。

A.A

B.B

C.C

D.D