英语填空8Many people keep small fish 1.--- pets.They keep them i

英语填空8Many people keep small fish 1.___ pets.They keep them in a tank of water.The tank is made of glass.People can 2.___ through it.They can see inside the tank and water the fish.The fish need room.They mustn't be crowded.They need 3.___ to breathe.4.___ must be enough water for all fish.So the size of the tank is very important.In the tank people put small plants 5.___ are good for fish.They give oxygen to the water.Plants help in other ways,too.They can hide 6.___ the plants and sleep,lay eggs there.The fish 7.___ be kept in water all the time.Some can jump high.So the tank should be covered.This keeps the fish from 8.___(jump) out.The fish need food and should be fed every day.But 9.___ you give them too much food,it is very bad,for the extra food will fall to the bottom and make the water dirty.So the fish should get just enough food and finish 10.___ in ten minutes.Nothing should be left.