Listen! Is Kate playing the piano in the room? —No. It _________ be her. She has gone to London with her parents.

__________ will the match start?—__________half past seven.

_______ is the ruler? Is it black?—Yes, it is.

Dad, must we wait until the light becomes green? — Yes, I’m afraid we ______. That’s the traffic rule.

You don’t look well, Don! You’d better see your doctor.— I ________, but he said there was nothing wrong.