--- It’s difficult for the village children to cross the river to get to school.--- I think a bridge ________ over the river.
Our English teacher, Mrs. Black, ________ in our school since 1992.
The Olympic Games ________ every four years.
The old people and the children must ____________ in our country.
You ____________ to the ball. Why didn't you go?
Betty and her classmates are going to _______ a school magazine, and the magazine __________ New Standard.