The birds are digging a hole.(一般疑问句)

The dog is digging a hole now .(digging a hole下划线提问） some birds are singing in the tree.改为一般疑问句 There are some birds on the tree.的一般疑问句 There are some birds in the sky改一般疑问句 There are some birds in the tree改为一般疑问句 tree,digging,the,new,we,hole,were,a,for 连词成句 There are some birds in the sky改一般疑问句怎么改 There are many birds in the sree 改为一般疑问句,并做肯定回答 The sign on the birds cage is intereting一般疑问句 I liked the birds very much 变为一般疑问句 There were some birds in the tree.改成一般疑问句 连词成句：tree digging the new we holp are a for . 谢谢