句型转换!如下题!1.we are singing and dancing under the tree.(对划线部分提问,在singing and dancing under the tree.）2.I'm writing e-mails.(改为一般疑问句,并做肯定回答）3.The boy on the bike is my brother.(对划线部分提问,在on the bike ）
问题描述：
句型转换!如下题!
1.we are singing and dancing under the tree.(对划线部分提问,在singing and dancing under the tree.）
2.I'm writing e-mails.(改为一般疑问句,并做肯定回答）
3.The boy on the bike is my brother.(对划线部分提问,在on the bike ）
答
what are you doing?
are you writing e-mails?yes,i am
which boy is your brother?