1 . As we know, ________ earth is our home. So we must try our best to make it better.

A．an

B．the

C．\

2 . I want to be ________ astronaut, because I can fly rockets to ________ moon.

A．a; the

B．an; the

C．a; a

3 . On Mid-Autumn night Chinese people admire ________ moon and eat mooncakes.

A．a

B．an

C．the

4 . I want to be ________ astronaut, because I can fly rockets to ________ moon.

A．a; the

B．an; the

C．a; a

D．an; a

5 . China has set a goal of sending astronauts to ________ moon.

A．a

B．an

C．the

6 . More and more people realize saving ________ earth begins with small things.

A．a

B．an

C．the

D．/

7 . Scientists are trying to get more energy from _________ sun.

A．a

B．an

C．the

D．/

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

A．a

B．an

C．the

9 . _______ sun is shining brightly.

A．A

B．An

C．The

D．/

10 . It was ________ cold winter night and the moon was shining brightly across ________ night sky.

A．不填；a	B．a; the
C．the; a	D．the; 不填