The bird knocks on the cage door with his ---

The bird knocks on the cage door with his --- the parrot knocks()his beak()the cage door.A.with in B.by on 首字母填空：When the parrot is hungry,he knocks on the cage door w 鸟笼是the bird's cage还是the bird cage lion in the bird cage THE BIG BIRD CAGE怎么样 Death knocks at the door什么意思 The cage bird and the bat The bird in the cage中文翻译 please tell me if he knocks()the door.A.at B.in C.with D.by 确认那个对：what's wrong with me who knock the door or who knocks the bird 's cage中文意思