I came here by taxi and the driver ____ me 50 yuan.— Really? You _____ by bus.[ ]

It was Tom as well as two of his classmates that _______ invited to the party.

Listen! Sally is singing in that room.– It ______ be sally. She has gone to Paris.

The club________ at the beginning of this year and it has many members now.

With the help of __________ people, I can be more successful in volunteer work.