Question

 Edward, you play so well. But I __________ you played the piano.

A．didn’t know	B．hadn’t known
C．don’t know	D．haven’t known

 

Answer 1

【答案】

A。

【解析】句意为：爱德华,你打得好。但我不知道你弹钢琴。所谈论的是指过去行为，故用过去式。