以下3个说法中：①在同一直线上的4点A、B、C、D可以表示5条不同的线段；②大于90°的角叫做钝角；③同一个角的补角一定大于它的余角．错误说法的个数有[ ]

A．0个

B．1个

C．2个

D．3个

Tom make up his mind to get a seat for the football match ________ it means standing in a queue all night.

A．as if

B．as though

C．even if

D．whatever