Because baby birds are weak,so mother birds feed them（改错）

Because baby birds are weak,so mother birds feed them（改错） Please feed the birds.(否定句） Little birds are our friends.Please don't（ ） them. Birds Feed the birds,please.（变否定句） the birds are singing beautiful songs for them. feed the birds 永恒的沉睡 歌词 Two birds with behind them.还是Two birds behind them. mother bird goes up to the baby birds in the tree, The birds in the forest sing___,so i like them very much.Liu these birds are fun (watch) there are many birds ( ) (sing) penguins are birds,but they are not l____ most birds.