Do you know _______ man in jeans—Yes. He’s a professor of _______ university.

She didn’t come to the party last Sunday. _______, she must have made the party more exciting.

The teacher called Tom to his officebecause he was caught in the exam.

Is Mr Hu driving here—I’m not sure. He ___________ come by train.

I would appreciate it _______ you call back this afternoon for the doctor’s appointment.