—Is that a ball? (   )
—Yes, ______.

A．a ball

B．it’s

C．it is

—Were they worried? (   )
—______________

A．Yes, they weren’t.

B．Yes, they were.

C．No, they wasn’t.

—Do you want ______ to the party? ( )
—I’d love to, but I have something else to do.

A．come

B．coming

C．to come

按要求进行句型转换
1.I like playing ping-pong.(对划线部分提问)
_________________________________________
2. Zhao Ming likes playing basketball.(对划线部分提问)
_____________________________________________
3.Zhang Peng likes reading stories.(变成一般疑问句)
_________________________________________
4. He likes singing.l.(变成否定句)
_____________________________________________

_______ a concert next Saturday? (   )

A．There will be

B．Will there be

C．There can be

D．There are