Where () my umbrella?Somebody () it away by mistakes.A is ,must have taken B is ,must take

问题描述:

Where () my umbrella?Somebody () it away by mistakes.A is ,must have taken B is ,must take
C was ,must take
D is ,takes
why?

Awhy根据语境,第一个空应该用一般现在时,但是把伞拿走的动作是过去发生的动作,所以用现在完成时