—Is this your backpack?
—Yes, _______.
| A．This is | B．it is |
| C．it’s | D．it isn’t |
Where is the art room? It’s on the ____ floor.
A. one B. first C. room
It’s 9 o’clock . It’s time _____ English class.
A. with B. to C. for
My shoes are _____ your feet.
A. on B. with C. in
This shirt is good, ___ it’s too expensive.
A. for B. but C. and
_______ are these apples? They are 22.
A. How many B. How much C. How old