Birds are building nests in the trees and the sun is shining more–signs of spring are e

Birds are building nests in the trees and the sun is shining more–signs of spring are e what are you building! birds will 什么 all kinds of things for nest building penguins are birds,but they are not l____ most birds. They are birds 写出问句 are the birds in the Where are the birds中文 you are birds and beasts What are the workers building? the ---are ---a tall---.(a.builder,building,building b.builders,build,building c.builders,building,b Birds There are some birds s___in the tree. there are many birds in the sky There are some birds singing( )the trees there are three birds in the (The sun is shining,birds are singing. what are the smallest birds on earth 连词成句：the flying are birds