试题 试卷
题型：单选题 题类：常考题 难易度：普通
外研版（一起点）小学英语六年级上册Module 1 Unit 1 How long is the great wall?同步练习
— There{#blank#}2{#/blank#}(be) forty.
—They're ________.
例: one + two = three
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