读句子猜动物It has four legs and two big horns.It's big and strong

读句子猜动物It has four legs and two big horns.It's big and strong.It eats grass and gives us milk.I这是___?It can swim.It looks like a duck.It likes eating rice and vegetables.It can give us eggs and meat.这是__?It looks like a bird but it cannot fly.it likes eating rice,vegetables and worms.it can give us eggs and meat.这是__?