25．—Your coat fits you well.
— Tha nk you. I_______ it when I was on vacation.
A．have bought B．buy C．bought
26．— Did you win t he game yesterday?
— Not really. ______we all tried our best, we lost it.
A．If B．Though C．Unless
27．— Finally, they came back.
— They ______be hungry after such a long walk.
A．can’t B．must C．needn’t
