The chairperson received about three ______ applications to join the Bird watching Club.
I haven’t seen my old friends for years, I ‘m looking forword ______ them.
Why did you come to work on foot this morning? — Because today is the day with no cars, I ______ my car at home.
When the teacher came into the classroom, the students ____ in groups.
Do you know the girl _______is singing in the classroom?