3.As the years passed， many occasions--- birthdays， awards， graduations ____ with Dad’s flowers. 

Sheldon could have defeated Howard in the match, but he _______ too careless at the last minute. 

The new teacher referred to________to our school yesterday.

During the Olympic torch relay, thousands of people __________ in either side of the street.

—Lily is going to make a presentation in class this afternoon.—Oh, really? I ________ it was Michael's turn.