—Let’s go out for a walk.
—You’d better not. These days the air is getting much ________ than it was before.
| A．better | B．worse | C．cleaner | D．easier |
Mr. White is fixing his computer because there is __________ wrong with it.
| A．nothing | B．anything |
| C．something | D．everything |
— What about a drink of tea?
—Hurry up. There is time for a drink.
| A．little | B．few |
| C．a few | D．a little |
I have a lovely doll. You can also buy ______ in a toy shop.
| A．it | B．one | C．another | D．that |
—Is the boy in white clothes your friend, Kangkang? —No. ____ in black clothes is.
| A．One | B．This | C．That | D．The one |
--- Who is over there in the dark?
---_____. What you saw is just a chair.
| A．None | B．Neither | C．Nothing | D．Nobody |