1 . —I want to know more about Chinese food.
—I have some books about ________. You can use ________ if you want.

A．one; one

B．one; it

C．it; one

D．it; it

2 . I find the service robots in the hotel useful, so I plan to buy ________ for my grandfather.

A．it

B．one

C．this

D．that

3 . —Is there ________ open area like a playground for sports?
—Yes. There is ________ next to the classroom building.

A．the; one

B．an; one

C．an; it

D．the; it

4 . Your schoolbag looks beautiful. I really want ________. Where did you buy ________?

A．it; it

B．one; it

C．that; one

D．it; one

5 . —I need a red pen now, mom.
—Oh, I’m busy now. Let your dad ________ for you.

A．to buy it

B．buy one

C．buys one

6 . —Do you have a small mouth?
—No, I don’t. I have a wide _______.

A．it

B．one

C．ones

D．them

7 . I can’t find my eraser. I must buy ________ for the English test.

A．one

B．them

C．it

8 . I like the colour of the trousers. So I’d like ________.

A．buying one

B．to buy one

C．buying a pair

D．to buy a pair

9 . —Claudia, my basket isn’t here. Do you have ________?
—Of course I do.

A．it

B．that

C．one

10 . I lost my pencil box. I can’t find ________. I must buy ________ this afternoon.

A．it; it

B．one; one

C．it; one

D．one; it