—I’ve bought a box of chocolates for our daughter.
—Oh, how good a dad! But she doesn’t like sweet things. that?
A. Don’t you know
B. Haven’t you known
C. Didn’t you know
D. Hadn’t you known
网友回答
A. Don’t you know
B. Haven’t you known
(答案→)C. Didn’t you know
D. Hadn’t you known
解析：译为：――我为我们的女儿买了一盒巧克力。――多么好的爸爸呀!但是她不喜欢甜味食品，难道你不知道吗?”答语含有强烈的讽刺意味，反问语为：在我说之前你不知道吗?所以用过去时。