Pop music _________ relaxing.

Many athletes are clear that the Olympic Games are the only time ________ they will be watched by thousands of millions.

What a _______ day it is! Let’s go out fora walk.

It is true that at times the USA has experiencedperiods of_______unemployment as well as labor shortages

“周瑜打黄盖”这条苦肉计是（ ）的前期策略。