Помогите!В номере 4 необходимо заполнить пропуски предлогами in, on, at, underВ

I am in the classroom. i am not at the blackboard. I am at the desk. There is a book on my desk. my poems and pencils are in my pencil -box. the pencil- box is in my bag. the bag is under the desk.
we've got flowers in our school school park. two pupils are sitting under the tree In this park now.

5. near his house. among us. between two big houses. around the table. at the window. at the door. far from school. near our office. under the bed. On the other side of the river. in front of her house. behind me. under her head. under the table. under ground. in the school. in the house. outside the house. on the table. on the wall.

6. on. in. in. in. at. at. at, at. at. in. in. on. on, in

вроде так, полагаюсь верно)