1 . Many more people have realized saving_____________ earth begins with small things.

A．a

B．an

C．the

2 . —Please look at______ moon in the sky, Betty.
—Wow! It looks like________ round plate（盘子）.

A．a; the

B．the; the

C．a; a

D．the; a

3 . ―Tomorrow is Sunday. How do you spend it?
―I want to go on________ trip to ________Great Wall.

A．a; the

B．/; the

C．the; a

D．the; /

4 . It was a good night. ______ moon was in the sky.

A．A

B．An

C．The

D．/

5 . Today Mr. Liu told us something about         universe in class.

A．a	B．an
C．the	D．/

6 . Peter, do you know who is the first man to walk on ________ moon?

A．a

B．an

C．the

D．/

7 . Amy is _______ unusual girl. She has traveled to 15 countries in _______ world.

A．a; the

B．a; \

C．an; the

D．an; one

8 . Neil Armstrong is the first man________.

A．walk on the moon

B．walk on moon

C．to walk on the moon

D．to walk on moon

9 . There is no living thing on __________moon.

A．the

B．a

C．不填

10 . My little brother Bob hopes to travel to ____ space in the future.

A．a

B．/

C．the