题干

__ It is so late. Our son __________ be back .
__ Don’t  worry . I dare say he ________ have some extra work to do.
A.can ; mustB.will ; mightC.should ; mustD.must ; may
上一题 下一题 0.64难度 单项选择 更新时间:2013-07-22 03:08:27

答案(点此获取答案解析)