情态动词选择

题目

情态动词选择
My mp4 player isn't in my bag.Where ___ I have put it?
A. can B.must C. should D. would
这题为什么选can?
can have done也是表示一种推测么?

答案

当can have done在表示猜测.
Where can I have put it?
我会把它放在哪了?
must have done 表示肯定,既然是是问句就不可能肯定
should have done 是本应该这么做（实际上没做）
would have done 过去将来时