---Mind your steps, guy! Don’t you see the words “__________ the grass”?
| A．Keep off | B．Keep out |
| C．Take off | D．Take out |
—What’s wrong with you? — It’s ________.
A. nothing serious
B. serious nothing
C. serious something
We will stay at home instead of ________.
A. walking B. to walk C. walk
The team trekked _____ the jungle to look for the living tigers.
| A．across | B．through | C．cross | D．into |
The number of the workers in this factory _______ two hundred.
| A．have | B．were | C．are | D．is |
---Where would you like to go ?
---I’d like to go ________.
| A．warm somewhere | B．place warm |
| C．somewhere warm | D．warm place |