Though they may know their parents are right, teenagers sometimes tend to _____ act against their parents’ wishes because they hope to get away from the control of them.
Last Sunday he promised _________ today, but he hasn't appeared yet.
At that time I had no idea _________ I could hand it to him without being seen.
Now there is a danger _________ the ground may fall under the heavy traffic.
We think it possible _________ the local government will be able to solve the housing problem.
She took it for granted _________ I'd be back home an hour later.