_____， we went swimming in the river.

It was in New Zealand _____ Elizabeth first met Mr. Morris.

（ ） bad news it is! We must try our best to help them out of the difficulty.

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

She is a very _____ secretary; she almost never forgets anything or makes a mistake.

His first novel was a failure,（ ） .

Richard is American, John is British—they have different （ ）.

As a Chinese proverb goes， a heavy snow _____ a good harvest year.

Most computer users are （ ） threat from computer viruses．

We should do as much as we can _____ our country better and more beautiful.

Before joining the army, he spent a lot of time in the village_____he belonged.

Many teenagers feel no difficulty （ ） computer.