题目内容
按要求做题
The birds were singing in the tree.
(改成一般疑问句)________ the birds ____________ in the tree?
答案:Were;singing
练习册系列答案
相关题目
题目内容
按要求做题
The birds were singing in the tree.
(改成一般疑问句)________ the birds ____________ in the tree?