有hear the birds这种说法吗?sing可以省吗?

有hear the birds这种说法吗?sing可以省吗? I can hear so many birds sing这句话对不对?hear后是宾语从句吗? Can you hear the birds sing in the morning? In spring,we can hear birds -----(sing) in the trees I hear the birds sing.变为被动句 The birds are pretty 和 Birds sing有什么区别? Listen!Can you hear birds（ ）in the tree?A.sing B.to sing C.s I ofent hear birds ____(sing) songs in the tree in the morin Can you hear birds _____(sing)in the tree outside the window We often hear a lot of birds ___(sing) in the trees in the m I often hear birds ( )in the morning?是填to sing 还是填singi 有The largest proportion这种说法,那可以把large换成most吗?