We like our English teacher because she often tells （ ） funny stories in class.

The father went to the door in （ ） to a knock from outside.

The people living in these apartments have free （ ） to that swimming pool.

One should always remember that appearances can be_____.

He kept silent, so I couldn’t know （ ） he agreed （ ） not.

Before the invention of refrigeration， the _____ of fish and meat must have been a problem.

Air pollution is obviously one of the major _____ of city life.

（ ） , I cannot spare any time to read it.

His first novel was a failure,（ ） .

I think we should stop arguing and work together, if we want to get ______ near a solution to the problem.

_____， we went swimming in the river.

Air pollution is obviously one of the major _____ of city life.