怎样把英语的陈述句改成一般疑问句？

Question

怎样把以下的英语陈述句改成一般疑问句？并且写出每句是和否的回答。 第一句：We are students. 第二句：They are books. 第三句：He is a teacheer. 第四句：She is a nurse. 我非常急啊，明天就要交作业了！

Answer 1

不必着急，救星来了！
第一句：We
are
students.
Are
you
students?
(也可自问，改成：Are
we
students?)
第二句：They
are
books.
Are
they
books?
第三句：He
is
a
teacher.
Is
he
a
teacher?
第四句：She
is
a
nurse.
Is
she
a
nurse?
请注意拼写，且各单词之间只留一个空格。