问题:
【题文】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
【题文】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 |
参考答案: