Mr. Wang often says to her child, “You _______ play with fire(火). It’s dangerous.”
A. mustn’t
B. had better
C. needn’t
The boy is playing____ piano. He isn’t playing ___ basketball.
A. a, a B. the , / C. /，/
______man with black glasses is my host father in Britain.
| A．An | B．A | C．The | D．/ |
----Do you know _______ young man under the tree?
----Yes, but only a little, maybe he is _______ university student.
| A．a; an | B．a; the |
| C．the; an | D．the; a |
—Do you often play_______ football with your friends?
—No, I don’t like sports. I often play______ piano in my free time.
A. a, the B. the, / C. /, the
It is _______ unusual thing for us to find ________ UFO.
| A．a; a | B．an; an | C．a; an | D．an; a |