If you’d written earlier, I’d have known when you to go on holiday.
A. want
B. have wanted
C. wanted
D. will want
网友回答
A. want
B. have wanted
(答案→)C. wanted
D. will want
解析：本题考查时态。根据had written，would have known 这是对过去的一种虚拟，因此说明事情发生发生的状态应该在过去。句意：如果你早点写（出来），我就会早知道你想去度假。（事实上，现在知道了，但已晚了）。故选C。