One day,I saw Bruce _______in tne lake.A swims B is swim C swimming

One day,I saw Bruce _______in tne lake.A swims B is swim C swimming
One day,I saw Bruce _______in tne lake.A swims B is swim C swimming

One day,I saw Bruce _______in tne lake.A swims B is swim C swimming
C
see sb doing sth看见某人在做什么
O(∩_∩)O 认同请采纳,不懂继续问. 祝学习进步! 谢谢!

C swimming