I know it’s normal for such a thing to happen,but we________it if we’d been more careful.
Now Tom with his classmates ________ football on the playground.
With two children ______ middle school in the nearby town now, the parents are working hard.
Having answered the phone, I couldn’t but ______ what would happen next.
All of us remember the earthquake that ______ Wenchuan in 2008.
Paul had to write a history paper, _____ he couldn’t find time to do it.