________ water(Water)is necessary in ________ people’s everyday life．

A．/;/

B．The;/

C．The; the

D．/; the

It is known to all that ________ light travels faster than ________ sound．

A．/;/

B．a; a

C．the; the

D．the;/

－Excuse me, may I have ________ water, please?

－Sorry, there isn’t ________ water in ________ bottle．

A．any; any; the

B．some; some; a

C．some; any; the

D．some; any; a

The ship is sailing on ________ Pacific Ocean．

A．a

B．the

C．/

D．that

The students of our school climbed ________ West Mountains．

A．the

B．this

C．that

D．/

They sailed along ________ Yellow River for two weeks before they arrived ________ home．

A．/;/

B．the;/

C．the; the

D．/; the

Not all ________ beautiful is good．

A．the

B．a

C．/

D．this

________ poor in those days had a hard time．

A．A

B．This

C．The

D．Those

The young nurse is kind to ________ ill in the hospital．

A．a

B．an

C．/

D．the

We should look after ________ old．

A．these

B．those

C．the

D．an