Either you or one of your family members __________the opening ceremony next week. 

Setting fire to the public buildings ___ highly dangerous and forbidden by law.

 Many a student ________ failed in the biology exam，and Tom is the only one of them who ________ decided to give up the course.

There ________ a football match between Class 1 and Class 3 next week.

The number of the students in our school _________ 600, but a number of students _________ living in the school.