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题型：选词填空（单句） 题类： 难易度：普通
（典中点）人教版（PEP）六年级上册Unit 2 Part B(1) Let's try&Let's talk
—I'm ________ a postcard.
What is the grandmother doing?
{#blank#}1{#/blank#}
do, does, playing, are, cleaning
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