试题 试卷
题型：单选题 题类：常考题 难易度：普通
（听力题坏掉）初中英语新目标九年级Unit 13 We are trying to save the earth.单元检测题（含听力音频）
— Thank you.
—It's ________. I learn a lot from it. And my mother likes it, too.
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