试题 试卷
题型：单选题 题类：常考题 难易度：普通
广东省深圳市南山区育才三中2018-2019学年七年级上学期英语期中考试试卷
—That's true. We can't pollute it.
—Wait a minute. Don't cross the street _______ the traffic lights are green.
一Well, the is how we can tell whether the information is useful or not.
—Because she realizes that her son likes telling lies.
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