试题 试卷
题型：单选题 题类：常考题 难易度：普通
北京市海淀区2016-2017学年高一上学期英语期末考试试卷
—Sure. ______.
—I guess so. It's not difficult after all.
—Boy, you ________. Our neighbor has offered to help us.
—Sorry, I am not sure, but it ____________ be.
— When big firms reduce their expenses, we ______ know that times are really hard.
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