All of them are （） at Lana"s achievement.

事實勝于雄辯。

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

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

The author"s attitude towards gift giving is （）.

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

Having a conversation with people with dementia will be （）.

After reading the novel he was too exciting to go to sleep that night.

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