After a whole day’s hard work in the field, the old peasant went home, _____. 

The question was so ________ that there was a ________ expression on the teacher's face.

In this            conflict, about 20 common people were killed.  

–As you may have found, the Chinese language is ______ in idioms and proverbs. --Yes, I often get ______.

They help and understand each other and never quarrel, thus creating a(n)_______ relationship.