He became a famous writer when he was ______ .
| A．in his fifty | B．in his fifties |
| C．in fifty years old | D．in fifties |
— What are those?
—.
A.Those are books. B. They are books. C. It’s a book.
— You look beautiful(漂亮).
— ________.
A. Thanks you B. Thank you C. Me,too
—I have a nice book.
—Oh, can you ________?
A．give me to it B．give me it C． give it to me
Three and five ________ eight.
A．am B．is C．are
The boy ______ blue pants _____ my student.
A．in … is B．in … are C．on … has