—Our math teacher stays in the office for a long time every day.—Yes,it________him a long time to check our homework.
—What’s wrong with you ? —________.
They arrived while we__________ dinner.
—Shall we meet on Sunday or Saturday? —______ is OK. I’m free on weekends .
—You were brave enough to say “No”at the meeting. —Well,now I regret________ that .
My mother is sleeping .Don’t _________.