请问下面句子表达方式有错吗?

问题描述:

请问下面句子表达方式有错吗?
1.She was swimming slowly and looking for some food to eat with her baby near the bank of the river.
2.She was swimming slowly and was looking for some food to eat with her baby near the bank of the river.
3.She was swimming slowly and looked for some food to eat with her baby near the bank of the river.

第三个不对,时态有问题.
前两个都对,关于and和省略可以比较灵活.