Mark Twain left_____ school at _____ of twelve to look for work. A the ; the B / ; the C / ; / D the ; /
She thinks women have to do more than men do when they ______ for jobs or honors.
_______ many times, he finally understood it.
Ladies and gentlemen, please remain ________ until the plane has come to a complete stop.
He told us whether _________ a picnic was still under discussion.
--Has your teacher returned from America yet? --Yes, but he _______ here for only three days before his company sent him to Africa.