--There so many foreigners in the streets these days.
-- They might be runners in the Yellow River Estuary (入海口，河口) International Marathon.
| A．is | B．are | C．have | D．will be |
Hainan is famous ________ its beautiful beaches. Many tourists visit it every year.
| A． |
for |
B． |
to |
C． |
as |
We must get up at 7:00 tomorrow morning, ________ we’ll be late for the train.
| A． |
and |
B． |
or |
C． |
but |
Don’t ________ rubbish everywhere. It’s everyone’s duty to protect the environment.
| A． |
put away |
B． |
take away |
C． |
throw away |
—The old man never feels lonely, ________?
—No, because he has many friends.
| A． |
does he |
B． |
won’t he |
C． |
doesn’t he |
—Could you please sweep the floor, Daming?
—________ I’m busy cooking.
| A． |
Yes, sure. |
B． |
Sorry, I can’t. |
C． |
Yes, please. |