--When did your father come back last night? --He didn't come back _______ he finished all the work. A. until B. while C. if
—When I was seven, I played the piano very well. —___________.
___________ you do, remember to look after your parents well.
Don’t eatmeat any more. You arefat now.
I have ______ much homework to do every day that I can spend no time watching TV.
The red coat reminded Lily _____ the days when she was a student.