there is a piano in the classroom(改为一般疑问句并作否定回答there are some students in the library

如题所述

第1个回答  2019-10-14
补充一楼第一题!
1.
Is
there
a
piano
in
the
classroom?
No,
there
isn't.
2.
There
aren't
any
students
in
the
library.
3.
How
many
basketballs
are
there
in
the
box?
参考资料:英语牛人团