помогите совладать с заданием 3 то что закрыто бумажками не верно

Все что сумел.

1) hasn't she?
2) aren't they?
3) didn't he?
4) won't she?
5)don't they?
6) aren't there?
7) There is no bookcase in our classroom, ... is they?
8) It is Masha's classroom, ...isnt it?
9) There are some books on the table, ... arent they?
10) You can see a duster under the blackboard, ...cant you?
11) The teacher has got a lot of pens, ...hasnt she?