(i) Cat
(ii) Cats
(iii) Cat's paw
(iv) The cat batted the yarn.
(v) The cats played with the yarn.
(vi) This class exercise is silly.
(vii) The deer ate the leaves of the tree.
(viii) I can't wait for Friday to go to the parties.
(ix) Romulus, the legendary founder of Rome, to the women of Sabine by force.