swimming in the river ,swim in the river有什么区别

swimming in the river ,swim in the river有什么区别 They (swim;are swimming)in the river we should stop the ()(swim) from swimming in the river in the river和on the river有什么区别 Mike is_____(游泳) in the river.a. swim b.swimming The boys are swimming in the river Do you swim in the river or in the swimming pool?回答请详细说明 Who ____ in the river.A.swim B.swimming C.is swimming Many boys___(swim)in the river now Look!They___(swim)in the river Many people_____(swim)in the river. Let them not swim in the river