---I’m getting fatter and fatter. What should I do, doctor? ---You should eat ______ food and take ______exercise.
The big fire hasn’t been __________ yet?
We will never forget those happiest days _______ we spent on the summer camp.
We wondered __________ this afternoon.
The little boy was last seen __________ football by the river.
They found __________ impossible to finish so much work in such a short time.