There__________ great changes in our city in the past 10 years.

Ten years ago _______ only one building in our school. And in 10 years, _______ five buildings in our school.

“I’d like to give my thanks to those__________help my son will be able to survive his terrible disease,” said the woman on TV.

Will you buy this nice camera, Henry?– No. It’s too expensive. I can’t ________ it.

Is John coming by train?—He should, but henot. He likes driving his car, but I’m not quite sure.