There ______ a lot of green grass and beautiful flowers. But now everything has gone.A. was used to be B. were C. used to be
---How often do you exercise? --- ________.
The dining hall__________ from 11:00 to 12:30 on weekdays.
It’s time _______ Lily_______ her little dog now.
Miss Wu teaches _______ Maths. She’s nice _______ everyone.
---Your parents look so young . ---Yes , ____.