One of our rules is that every student _______ wear school uniform while at school.
Waste paper, waste glass, and waste iron can all be _____.
Food supplies may ________ towards the end of the trip, so we can’t waste any food.
Be ____ to finish your homework before supper.
His proposal is very _____. We do not need any explanation.
— I stayed at a hotel while in New York . — Oh , did you ? You ____ with Barbara .—