Both teachers and students _____not to use mobile phones in class in our school.

100? is the temperature ________ which water will boil[ ]

Excuse me, could you tell me where the nearest post office is—The nearest post office You will have to walk_____.

He spoke proudly of his part in the game, without mentioning ________ his teammates had done.

The road worker she met yesterday ___________ be her long-lost brother.