Нужно решить срочно задание ​

Ответ:

a)how many students are in this group?

they are a lot of students in this group, aren't there

are there a lot of students in this group?

b)do they always live in the detached house in a distant district?

they always live in the detached house in a distant district ,don't they?

why do they always live in the detached house in a distant district?

c) did she have a bulbous nose before the operation?

she had a bulbous nose before the operation, didn't she?

when did she have a bulbous nose?