1 . Tracy, ________ exchange student from Norway, is ________ college student in Nantong now.

A．a; an

B．an; the

C．an; a

D．the; /

2 . —Tina, you’re too careless. You missed ________ “n” in ________ word “Internet” again.
—Sorry, Miss Gao. I will be more careful next time.

A．the; an

B．an; the

C．a; the

3 . —Is Amy at home?
—No. But she will come back within ________ hour.

A．a

B．an

C．the

4 . —The mobile phone is ________ great invention.
—Yes, it’s ________ used in our daily life.

A．a, lastly

B．an, exactly

C．a, widely

D．the, nearly

5 . There is ________ “u” and ________ “s” in ________ word “use”.

A．a; an; a

B．an; a; the

C．a; an; the

7 . —Do you think doing chores is ________ waste of time?
—No, I think it can help us understand ________ idea of fairness.

A．/, an

B．a, the

C．the, an

8 . Jenny is studying in ________ university in the USA.

A．an

B．a

C．the

9 . I would like to be ________ astronaut when I grow up. I hope to fly in space.

A．a

B．an

C．the

D．/

10 . Singapore is ________ Asian country. It is one of ________ richest countries in Asia.

A．the; the

B．an; the

C．an; /