试题 试卷
题型：单选题 题类：模拟题 难易度：普通
浙江省温州市六校2019届九年级英语3月联合模拟试卷
— If you make a _______, you must keep it.
—That's great!
—Sure. He is my best friend and our __________ has lasted for years.
—Oh, I am doing some _____ to better understand what is happening to our earth.
—It is good for the environment.
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