Question

The girl in the classroom ______ be Maria. She called me from the library just now.

A．mustn't	B．may not
C．can't	D．needn't

Answer 1

C

试题分析：mustn't禁止，一定不；may not可能不；can't不可能；needn't不必。句意：教室里面的女孩不可能是玛利亚。刚才她从图书馆给我打电话了。Can表示客观上的能或者不能，may表示主管推测，结合语境可知选C。