The film star is very funny. He always makes us__________ in his movies.
| A．laugh | B．laughs | C．laughing | D．to laugh |
Now the weather is becoming ___________ , we should look after ourselves well.
| A．cold and cold | B．the coldest and coldest |
| C．colder and colder | D．colder and coldest |
About seventy percent of the earth with water.
| A．is covering | B．is covered | C．are covering | D．are covered |
Lots of students are_________ in tigers and other wildlife.
| A．interested | B．interest | C．interesting | D．doing |
Why does Liu Tao look all day long?
| A．sleepy | B．sleep |
| C．to be sleepy | D．sleeping |