It was not until 1920_________ regular radio broadcast began.
— Have you called Mr. Johnson’s office? — Yes, he _____ back before tomorrow. So he can attend our meeting on time.
Scientists are convinced the positive effect of laughter_____physical and mental health.
If you are unable to attend the interview, for _____ reason, you should inform us immediately.
They didn’t have any sweater in my size, and _____ I’d already decided I’d rather save the money.
— Did Alice enjoy the concert held in Grand Theater yesterday? — Yes, she did. She _____ such an excellent concert for a long time.