---___________ do they visit their old friends?---Once a year.
—______ did you _____ the problems at that time?— I worked hard with our group to solve them well.
Kate’s dad is getting old. She will go back home to see him_______it is convenient.
I don’t think fast food is good for our health, so I _____ go to KFC.A.always B. seldomC. usually D. often
It’s not ______ to ask her age when you meet a girl for the first time.
Jack _______ many English books in the past three years.