The of an adjective is to describe or add to the meaning of a noun.

Because of the war, the birth rate was low that decade.

John may not know much, but he's wise enough to know who to advice from when he needs to.

Two technicians have been examining the equipment since morning in an attempt to its breakdown.

I was the first to be into the room to meet the president of the company.

The government declared a state of because of the natural disaster.

It is impossible to finish the task in such a short time.

The chairman of the IMF was to resign after the scandal（丑闻）.

Your quick action has a serious accident.

The earlier the receives treatment, the better the chances he will have of recovering from the disease.

That government that its troops did this just in order to protect its people,

The girl has a for acting, which is like life to her.

In his speech, the professor the economic situation in China very closely.

The oceans have not yet been fully

My luggage was closely when I entered that country.