按要求完成句子。1. They are collecting leaves.（改为一般疑问句，并作肯定回答）
2. He is catching butterflies.（改为一般疑问句，并作否定回答）
试题答案
1. Are they collecting leaves? Yes, they are.
2. Is he catching butterflies? No, he isn't.
按要求完成句子.1. They are collecting leaves.(改为一般
时间：2025-03-13 06:42:26
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