2 . —Do you want to be __________ astronaut when you grow up?
—Of course. I also hope to take a spaceship to__________ moon in the future.

A．a; a

B．an; the

C．a; the

D．an; a

3 . — Look! What’s that moving high up in ________ sky?
— It must be ________ plane.

A．a；the

B．the；/

C．the；a

D．/；a

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

A．a

B．an

C．the

5 . Rivers low, mountains high, the same moon in _________sky.

A．a

B．/

C．the

6 . Look! There are so many stars in ________sky.

A．a

B．an

C．the

D．/

7 . Chinese learning is popular with people all over ______ world．

A．a

B．/

C．the

8 . We can’t see ________ sun at night.

A．a

B．an

C．the

9 . (2017·甘肃白银、武威·6)________ moon is very bright at night.

A．A

B．An

C．The

D．/

10 . ________ moon is very bright at night.

A．A	B．An
C．The	D．/