birds are singing.和birds singing.那个语法是对的.

birds are singing.和birds singing.那个语法是对的. 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. the day breaks______the birds are singing. Now day breaks,____the birds are singing. There are a few birds singing in the tree.对in the tree提问 The birds are singing () 1,happily 2,happy 3,late some birds are singing in the tree.改为一般疑问句 The birds (are singing) in the tree括号部分提问 listen some birds are singing in the tree