There is a nature park in the city.
This is my mom's friend.
Are there any fish in the river?
There is a farm near our school.
He is going to the park with his mom. 此处的 be going to 的句型表示将来时的同时，go to the park 中的动词恰好是 go ，所以不能理解是 to do ，此处的to 是介词性质，后面直接加名词即可，无须重复动词go 。Where did Mum take us last year? 我觉得这样挺好的，to the park是地点，所以选用where提问，where相当于to which place,但是用where更好一点
