a. true b. false
a. They have no hair and must stay warm.
b. They are mean and must be kept alone.
c. They are in the pouch to help take care of their mothers.
a. A metal chair leg b. A wooden desk
c. A blanket
a. a rock b. a stone
c. a ball of gas d. a light
(1)–a; (2)–a; (3)–a; (4)–c