题目内容
连词成句,注意标点符号和大小写。
1. doing What they are (?)
2. swimming are They (.)
3. trees They climbing are (.)
2. swimming are They (.)
3. trees They climbing are (.)
1. What are they doing?
2. They're swimming.
3. They are climbing trees.
2. They're swimming.
3. They are climbing trees.
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