试题 试卷
题型：单选题 题类：常考题 难易度：普通
牛津版（深圳·广州）2018-2019学年初中英语八年级下册Unit 5自主检测
— OK. Let me help you search the Internet.
—A map is helpful，I think．
— 5 dollars.
—It's a useful ________，so we must learn it well.
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