There are 40 students in our class，who come from a  ________of backgrounds.

The great _______ of my plan is that it’s so cheap compared to the others.

There are usually at least two _____ of looking at every question.

It’s the ________ in Britain for a bride to throw her flowers to the wedding guests.

He and his wife are of the same ______;they both want their son to go to college.