题目

用方框中所给单词的适当形式填空，使短文通顺、正确。每词仅用一次（每空一词）。 on     under       grandparent     your     it A: Come on, Jack! B: Oh, no! Where's my bag? A: Hmm...is on your desk? B: No, and it's not the chair. A: Oh! It's on the sofa. B: Thank , Mom. Err...where's the map? A: I think it's in your room. B: Yes ,it's on their bed! And my hat? A: It's your head! B: Oh, yeah! Haha 答案：【1】it【2】under【3】you【4】grandparents'【5】on

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