— Who’s that man in our classroom? It ________ be Mr. Brown. He is much taller.— You mean the man in white? He is an exchange student from England.
Jeff _______the hospital if he feels better in a few days.
---What were you doing at this time last night? --- I _________ a phone call.
Mr. White _____in that city since he moved there thirty years ago.
Don’t make a noise! They _______on a physics problem now.
_____of my parents used to travel all over the country on their own.