mind, the secret to happiness__________ yoursuccessful work and your contribution towards others’ happiness.

Leo was late for class again. So he____ clean the classroom after school.

Hi , Peter ,is this ____bike–Oh, yes. It’s a birthday gift from my parents.

32. It is certain that he will _____ his business to his son when he gets old.

There is a great deal of evidence____thatmusic activities engage different parts of the brain. [ ]