连词成句：1.was while walking i saw to i a in cat school a tree连词成句：1.was while walking i saw to i a in cat school a tree 2.i speaking to you you the were while saw teacher

1. I saw a cat in a tree while I was walking to school. 意思是：
我走在去学校路上时看到了在树上的一只猫。
2. I saw you while you were speaking to the teacher. 意思是：
你在跟那个老师讲话时，我看到了你。 或者是：我看到你时你正在跟那个老师讲话。
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While I was walking to school I saw a cat in a tree.
I saw you while you were speaking to the teacher.

1. i saw a cat in a tree while i was walking to school
2. the teacher saw you while i was speaking to you