To keep healthy, I try to _____a few minutes each day to do some exercises. [ ]

wonder so many students and their families are visiting Boston —area schools, such as Harvard, in their summer holidays.

A: I’m sorry I’m late, Tony, but the bus broke down, and there were no taxis.B: _________________, Arthur. I’ve just got here myself, so I wasn’t waiting for long.

up, ______ war is unavoidable, human beingscannot enjoy everlasting peace

surprises most of us.