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

A．a

B．/

C．the

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

A．a

B．an

C．the

3 . Our earth is ________ very small planet in ________ universe.

A．a,an

B．a, the

C．an. a

D．a, /

4 . CNSA announced that China's Chang'e-4 probe landed on the far   side of moon on January 3^rd, 2019. It is historic moment for the Chinese to explore space.

A．a; an

B．an; a

C．the; a

D．the; an

5 . The earth is a planet in _______ universe.

A．a

B．an

C．the

D．不填

6 . Don't read in ______ sun, don’t read in______ bed, either. It's bad for your eyes.

A．a, the

B．an, the

C．the, the

D．the,/

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

A．A

B．An

C．The

D．/

8 . —Are you reading ________ article，Peter?
—Yes.It tells us how to save ________ earth.

A．an，an

B．an，the

C．the，an

D．a，the

9 . —How often does your brother use _______ Internet?
—He uses it at _______ least three times a week.

A．the; the

B．/ ; the

C．the; /

D．an; /

10 . ---__________ bad weather it is!
--- We haven't see _________ sun for a week.

A．What a; 不填

B．How a; the

C．What ;不填

D．What; the