The Great Wall is __________ tourist attraction that millions of people pour in every year.
The two girls had been talking in ________ low voice all ________ time during the meeting, which upset the manager.
Only after they had discussed the matter for a few hours ______ a decision.
— Why was it so noisy over there? — The Twins were surrounded by their fans ____ they stepped out of the hall.
Whatever he said, his parents wouldn’t _______ him joining the golf club, which annoyed him a great deal.
The man kept silent in the room unless_______.