IX. Fill in each blank with a suitable preposition.

1.  How many lamps are there _______ your room?

2.  Olivia is lazy. She spends all day sitting _______ the TV.

3.  Michael is putting his hands and arms _______ his back.

4.  In this game, the students have to hold hands and stand _______ each other.

5.  There is a bookshop _______ our school and the department store.

6.  Does the city‟s subway go _______ the ground?