Sure, here are the completed sentence halves:

1. In Tom's room ______ F. in Tom's room.
2. Tom's room ______ D. is not very big.
3. There are two windows with new ______ H. curtains.
4. There's a computer on ______ A. Tom's desk.
5. Tom's pet is ______ C. a dog.
6. The dog's name ______ G. is Blackie.
7. There are pictures ______ E. Tom's classmates.
8. On the pictures we can see ______ B. there's a bed, a desk and a chair.