Question

--- Whose shirt is this?
--- It _______ be Li Lei’s. It is too big for him.

A．could

B．must

C．can’t

D．might

Answer 1

C

试题分析：句意：这是谁的衬衫？这不可能是李磊的。这对他来说太大了。表示肯定的推测常用情态动词must，表是否定的推测常用情态动词can的否定式。根据It is too big for him.可知该用否定的推测。故选C。