Tom is a hard-working boy. He always ________ two hours doing his homework.
A. spends B. takes C. costs
Thanks ________ your help, Mary.
| A．in | B．to |
| C．for | D．At |
Han Mei , _____is Susan.
| A．the | B．this |
| C．it | D．You |
—______ —Good morning, Helen.
| A．How are you? | B．Good morning, Cindy. |
| C．Hello. | D．What’s this, Bob? |
—______ —K-E-Y.
| A．What’s this? | B．Is it a key? |
| C．Spell it, please. | D．What’s this in English? |
—Is this _______ car? —Yes, it’s _______ English car.
| A．a; an | B．a; a |
| C．an; an | D．an; a |