The Crimea hope to make money （）.

Man was, is and always will be trying to improve his living conditions.

I thought you might be tired, （） is why I decided to help you.

An idle youth, a needy age.

It"s no good learning English without practice.

It took years for Einstein"s theory to gain acceptably.

The only way to conquer a fear is to face it, and doing so as frequently as possible.

所有的公共場所都應完全禁止吸煙。

No one should blind himself （） the well-known fact.

There is nothing so admirable as a man whose sacrifices his life and happiness for others.