I had _____awful dream last night because I watched_____ scary movie before going to bed.
| A．an; an | B．a; a | C．an; a | D．the; an |
--- Where’s my basketball? --- It’s _______ the door.
| A．behind | B．on | C．in | D．under |
–Is this your book? –Yes, ________.
| A．this is | B．it is |
| C．it isn’t | D．he is |
This is ______ ruler and that’s ______ eraser.
| A．a; a | B．a; an |
| C．an; a | D．an; an |
—_______ can I keep the books?
—Two weeks.
| A．How long | B．How often |
| C．How far | D．How soon |
I think _______ necessary for you _______ breakfast.
| A．this; have | B．that; to have |
| C．it’s; to have | D．it’s; have |