—Can I go out to play, Mom?—You can ______ you stay in the garden.
They boy said ________ couldn’t he work out the problem but his teacher didn’t know how to do it.
— Why weren't you at the meeting? — I ________ for a long distance call from my sister in America.
We have done things we ought not to have done and ________ undone things we ought to have done.
The two ladies are ________ the same age, but there seems to be ten years ________ them.
--- I stayed at a hotel while in New York . --- Oh, did you? You ____ with Barbara.