_____ an important decision more on emotion than on reason, you will regret it sooner or later.

— What do you suppose ______ her look so upset?—______ by her boyfriend again.

Mr. Black decided to give up his farm and devoted all his time to_______those children living on the street.

It has been raining for nearly one week，________ the river rise a lot.

______ on his past mistakes, Ted realized that he had stayed around the wrong people.