火警电话号码是___________ A. one two zero B. one one nine C. one one zero
---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.
---Can you drive a car? --- No, I ________. I’m not old enough to get a license.