(2014·淮南高三质检)When you stand on the top of the mountain and overlook the surrounding scenery，you’ll find it is________to climb it up with effort.

It is said that many streets in this city have been ______ for cultural protection.

My first ________ of him was that he was a kind and thoughtful young man.

—What do you think of the project put forward by the Blacks?—Considering its real ________，it will be well worth putting into practice，I suppose.

My chest _______ when I make a deep breath, doctor.