1. (2020五上·北京期中) 选词填空

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1. （1） Children up at night and knock on doors for candies at Halloween.
3. （2） I like maths better, and I do in maths.
5. （3） Dad wants Maomao to them.
7. （4） We should be polite when you for help.
9. （5） Many children think science is .