After many months of grueling work and painful injuries to her shoulder and back, Susan realized that her dream of swimming the English Channel was unattainable.

In some countries, the disease burden could be prevented through environmental improvements.

The clubs meet on the last Thursday of every month in a dilapidated palace

On the whole, the rescue mission was well executed.

It is easy to open a shop but hard to keep it always open.

No one knew precisely what would happen to a human being in space

Synthetic products are made from chemicals or artificial substances.

The plants and animals of the sea fall into three major groups.

We ought to keep these proposals secret from the chairman for the time being.

Rapid run-off would cause frequent floods and leave little water during fry seasons.

One in seven accidents is caused by sleepy drivers.

The US troops are using much more sophisticated weapons in the Far East.

We have been out of touch him since he moved to London.

Slavery was abolished in the US in the 19th century.

He inherited a lucrative business from his father.

We cannot clean up our polluted rivers and seas overnight.

In remote communities, it's important to replenish stocks before the winter sets in.

To be prepared for war is one of the most effectual means of preserving peace.

Affluent families find it easier to support their children financially.

There is growing concern about the way man has destroyed the environment.

The dim light made it hard to see, so Ben squinted to make out the stranger’s face in the distance.