–What’s that noise?–Oh, I forgot to tell you. The new machine ______.
I like this book _______has a photograph of the author.
People ________do exercise every day have a better chance of staying healthy than those ________don’t.
He is the person _______,I believe, has the ability to do this challenging job.
The country life he was used to ______greatly since 1992.
The lucky dog missed _______by his teacher, though he had made a big mistake.