Your father is quite a good swimmer.--Sure he is.He ofen-------when he was young.

分类: 作业答案 • 2021-12-19 23:17:02

问题描述：

Your father is quite a good swimmer.--Sure he is.He ofen-------when he was young.
a.swims b.swam c.swum 说明理由

答

b.swam
when he was young是一个一般过去时态
swims 是现在时
swum 是过去分词