Ответ:

Is he reading a book?

He isn't reading a book

Is Alice taking a shower?

Alice isn't taking a shower

Is somebody knocking garden door?

Somebody isn't knocking garden door

Ответ:

he isn't reading a book

does he read a book?

Alice isn't taking a shower

Is Alice taking a shower?

The kids aren't playing ... .

are the kids playing ...?

nobody is knocking ... .

is anybody knocking ... ?

Объяснение:

в ... вставь то, что надо