You can go to see your sick granny, but you mustn’t stay there _____ visiting hours.
Flight BA 123 to Vienna is now boarding at
—Look at these tracks. It __________ be a wolf. —It needn't be. It be a fox.
He didn’t seem to mind_____________ TV while he was trying to study
Travelers_______________ that they should bring their ID cards with them.
I don't skate now, but I___________ when I was a kid.