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题型：单选题 题类：常考题 难易度：普通
牛津版英语四年级下册 Module 4 Things we enjoy Unit12 The ugly duckling同步练习
{#blank#}1{#/blank#} 改为 {#blank#}2{#/blank#}.
- Where are the ducklings? - They are on the Mother Duck's b{#blank#}1{#/blank#}.
There are three chicks and one hen in the picture.
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