If the green light doesn’t come on, you ______ go across the street.

Xi Jinping, the new president of our government calls on us to ________ food.

Linda’s mother used to be ________ university teacher. She taught maths.

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

Yesterday I was just to go out _____ someone telephoned me.