英语选择体Swallows fly to the south before winter comes,But why d
Swallows fly to the south before winter comes"he says.
Swallows fly to the south before winter ( )
Swallows fly to the south before winter comes .中文,为什么用comes而
Swallows fly to the south before winter_____
初三英语习题The swallows know when __to fly __ south.为什么填 to fly ,
When autumn comes,swallows go to the south.
When winter comes,some girds will fly to the south,__will st
连词成句.swallows ,in ,fly ,will,autumn ,to,south,the
Some birds ( )to the south before winter
why do brids fly south in the winter?
Why do birds fly south for winter
谁能用英语回答这个脑筋急转弯的问题呢why do birds fly south in the winter