The day has broken,because the birds are singing.改错

The day has broken,for the birds are singing.这句话是不是错了?是不是The 一道初二英语单选题~The day has broken,_______ the birds is singing.A. The day breaks ______the birds are singing. the day breaks______the birds are singing. 英语选择：Now day breaks,-----the birds are singing There are many birds are singing in the trees over there.(改错 The birds are singing in the tree.对singing提问 There are some birds singing( )the trees (The sun is shining,birds are singing. The day breaks __ the birds are singing.A.or B. The day breaks , ____ the birds are singing.添as 还是for 给个理由先, The day breaks,__the birds are singing.为什么填for,不填so