You should put the fish in the water to keep it____?

You should put the fish in the water to keep it____? you must keep the fish in water. 改错 1 You should keep the fish tank cleaning .2 You should to It is not good to put onlt a little water in the fish tank You should put the tea bag in the hot water for half an hour You should keep quiet in the cinema. you should keep the water clean at ______(little). Fish live in the water keep fish in the lake You should keep the you should keep the fish tank clean中keep是什么词性? If you want to keep the food good,you can put it in a c（）