ln summer,the children swim in the swimming（ )这个空填什么

ln summer,the children swim in the swimming（ )这个空填什么 In summer,children swim in the swimming pool and it's very__ Gao Shan often goes (swimming)(swim)in the Summer.请问为什么这样填,还 We ofter ()(swim)in the swimming pool in summer. Children like to swim in the swimming pool in s____ Some children are playing in the swimming p________..填什么 children in the countryside enjoy (swimming) in summer. We are enjoying_____ in the pool 填swim还是swimming The children in the swimming pool can’t swim at all. it is fun to swim in the summer.many students like swimming. They (swim;are swimming)in the river The children ( ) fast in the ( ) pool.(swim)