i often go ____ in the river after school

题目

i often go ____ in the river after school

答案

i often go SWIMMING in the river after school.
因为前面的GO已经是动词了,所以再加上SWIM这个动词的话,就要动词名词化,也就是加ING.
虽然说理论上讲 GO TO SWIM也是正确的,但是大多数时候人们不会这样用.