—Let’s play school-teacher and student! --- 。
—_______can I do for you? —Yes, please. I want a T-shirt.
—What’s three and twenty-seven? —It’s_______.
The yellow dog is than the black dog. ( ) A.thiner B.thin C.thinner
He is 12 years .( ) A.tall B.old C.long
The monkey’s tail is 36 . .( ) A.long B.small C.old