Что вставить: 1.)There(is are)two cats (on under)the sofa 2.)There (is are) a sofa in...

Question

Что вставить:
1.)There(is are)two cats (on under)the sofa
2.)There (is are) a sofa in front (of behind)the window.
3.)There(is are) some books(on next to) the sofa.

Answer 1

1. are, on
2. is, of
3. are, next to