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题型：填空题 题类：常考题 难易度：普通
（新版）人教新目标版（Go for it）九年级下册Unit 13 We're trying to save the earth! Section B (Self Check)同步测试
—Oh, no. I ____ it for the past two years.
—109 in all, since 2016.
—For about two years.
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