英语翻译是swimming is interesting还是swim is interesting?

英语翻译是swimming is interesting还是swim is interesting? Swimming is very interesting.为什么不能说swim Swimming in the pool with friends_____very interesting 填is还是 learn to swim is interesting还是learning to swim is interestin __ goldfish swim around is very interesting 是He is a very interesting boy 还是He is an very interesting bo Alice is good at___(swim) 是用swimmer还是swimming We think swimming is very __ （interest） 应该填interesting 还是 in find sth.is interesting还是find sth.interesting There is a interesting book.还是an interesting book? think it interesting 还是think it is interesting it is an interesting book 变感叹句是how interesting an book 还是 ho