The article suggests that when a person _______ under unusual stress he should be especially careful to have a well-balanced diet.
By the end of the next month, we________what we are required to learn.
Will you________me________favour to carry the box upstairs, boy?
Don't________the dictionary________you meet with a new world while reading.
Although we live in the same city, we haven't________with each other for a long time.
________to be the best among the competitions, he was given $ 20,000 as a reward.