Please remind me _______ he said he was going. I may be in time to see him off.
In today’s fast changing and competitive world, to be able to learn faster and more effectively is not merely desirable; it is ________.
—What a pity! Their experiment is a failure. —They ________ better under more favorable conditions.
—Life is hard these days. —At least we have some money left. That's ________, isn't it?
Having a glass of water first thing in the morning helps rid your body of poisonous substances that ________ overnight.
Square dancing ________ to help maintain fitness has caused conflicts between the Damas and the neighboring residents.