Put in at, on, in, under, after, in front of, behind.
1. The boy is standing ... the window. 2. The girls are playing table-tennis ... the yard. 3. The sun is shining ... the blue sky. 4. The plates and cups are ... the table. 5. Aram sits ... me but Nina sits ... me. 6. There are many benches ... the park ... the trees. 7. What is there ... your house?

1. The boy is standing at  the window. 2. The girls are playing table-tennis in the yard. 3. The sun is shining in the blue sky. 4. The plates and cups are on the table. 5. Aram sits in front of me but Nina sits behind me. 6. There are many benches in the park at the trees. 7. What is there in your house?