The man _____you referred to is fond of chatting online with _____ shares the same interest.

When they met ten years later, they talked happily about the people and the things ________ they remembered on the school football team.

Next Sunday is Thanksgiving Day．Have you got any idea _____ we celebrate it?

“All     is necessary for the triumph of the evil is     good men do nothing．” Edmund Burke said．

I often think of the years ____ I worked with the foreigners, ____ has had a great effect on my later life.