My ______of tomorrow’s activity is going out for a picnic with my classmates.

People like to eat sweet dumplings on the Eastern Festival，which ____ in hot water

There is not much money left, but ________ we must manage to buy the new house.

Heavy objects and light objects fall at the same speed ________ air holds them back.[ ]

Don’t give up working hard, ______ you will never achieve anything in your life.