If you meet trouble, you can ______ your friends ________ help.
The parents __________ food and clothes.
—Look, there is a lot of rubbish in the river.—Yes, it’s said that 80 per cent of fish in this river ________ live long.
The head teacher with his students _________ Mountain Tai if it _________ tomorrow.
______young will like this kind sport,but ______old will not.
___________a beautiful bird! I’ve never seen it before.