题干

The field research will take Luffy and Steven about two weeks; it will be a long time _______ we _______ again.
A.before; metB.since; meet C.before; meetD.since; met
上一题 下一题 0.64难度 单项选择 更新时间:2014-02-21 05:53:37

答案(点此获取答案解析)