— If you listen to me, you ______ take a good rest at once.— OK, I ______ do so.

--- May I go now? --- No. You ______________ let the teacher know first.”

--- I heard they went skating in the mountains last winter. --- It ______ true because there was little snow there.

“Passengers _____ not have their breakfast on the light train”. This rule arouses heated debates in Chongqing.

When disaster strikes, you _____ find yourself without water, gas and electricity.