Tony ________ full marks, but he was so careless as to make a spelling mistake.

题干

A．could have gained	B．can have gained
C．must have gained	D．must gain

上一题下一题 0.85难度单项选择更新时间:2014-02-24 04:41:40

小学学科试题库

初中学科试题库

高中学科试题库