—Why are your eyes so red? You _______ have slept well last night.—Yeah, I stayed up late writing a report.
— Can you see what is written on that board? — Yes. It _______ “CAUTION: WET FLOOR”.
Could you tell us ______ happens when one student in class expresses a personal opinion _______ maybe upsets other students?
. Let’s take _____ ten-minute break and have _______ drink of water.
He _______ us that everything would go according to plan, but it turned out a failure.
. His sister left home in 1998, and_______since.