题型：单选题 题类：常考题 难易度：普通
冀教版初中英语九年级上册Unit 3 Lesson 17 Staying safe in an earthquake 同步练习
If(如果) you want to … | ||
learn English keep healthy be a good student | you have to you can't you must | exercise be quiet in the library work hard learn the grammar(语法) arrive late for school go to bed late |
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