英语连词成句 1.back our what teacher come if 2.home what doing now

1.back our what teacher come if
答案：what if our teacher come back?
2.what are you doing now at home?
.答案：what are you doing now at home?
先找疑问词,然后+一般疑问句,找be动词,和实意动词将他们提前,短语抄下来
祝你学习开心,愉快.