paths
| A．southern | B．warmth | C．tooth | D．hundredth |
society
| A．achieve | B．friend | C．science | D．believe |
admitted
| A．returned | B．increased | C．disappointed | D．discussed |
examine
| A．exhibition | B．example | C．explanation | D．exercise |
stomach
| A．machine | B．cheek | C．aching | D．channel |
Something must be done to prevent our city ____ by thick smoke.
| A．to be polluted | B．from polluting | C．from being polluted | D．polluting |
To tell you the truth, I have nothing to do ____ it.
| A．about | B．with | C．for | D．of |
Did you have any trouble ____ the post office?
| A．to have found | B．with finding | C．to find | D．in finding |
- How long has the bookshop been in business?
-____1982.
| A．After | B．In | C．From | D．Since |
He looked quite healthy ____ he was ____ the age of seventy.
| A．when; at | B．because; in | C．if; for | D．though; at |