The parents waved and _____ the train until it was out of sight.
. Mr. Smith sold that magnificent cottage of his on the sea 2,000,000 dollars.
___________lessons were not difficult.
—You don't seem to be quite yourself today. What's wrong?—Oh, I'm suffering from a cold. Nothing serious,
. The most favorite room is the tidy study with a fireplace, we can watch TV and enjoy the nice scenery outside.
I often have conversations with John over telephone, while keep in touch with Tom by__________ letter.