Do you know where to go为什么不再加个to

Do you know where to go为什么不再加个to Do you know where" "(go)to enjoy yourself do you know where to go读升调还是降调 where do you go to?还是where do you go?为什么? Which city do you want to go to（这里为什么一定要加to）?I don't know wh what country do you want to go to?为什么末尾有to? where do you wan do you often go to school do 前面加个特殊疑问词 是 what 还是how 还是where 1.i want to go swimming 2.where do you swim 为什么一个加ing一个不加ing where do you want to go now? where do you want go to Where do you want to go today? “Where do you want to go today?