Помогите , пожалуйста , с решением всех номеров , КРОМЕ 1 и 6‼️

2.

1. had begun
2. think, raining

3.

1. may,can't
2. may
3. mast

4. не понятно на что отвечать,текста нет

5.

1. How many months in a year?

There are twelve months in a year, aren't there ?

2.

Is St.Petersburg a large city?

St.Petersburg is a large city,isn't it ?

3.Will be plane land in time ?

Plane will be land in time, will not?