Помогите пожалуйста Английский. Вместо точек нужно выбрать ответ из 4 ответов. Срочно.
The stewardess said that the
temperature in Sochi ... 30 degrees.
1 is
2 was
3 has been
4 had been

We all knew that such a decision ... to a
lot of problems.
1 will lead
2 would lead
3 had led
4 have led

The dog is so fluffy!-Yes. I ... her for half an hour.
1 brushed
2 have brushed
3 have been brushing
4 had brushed

If we ... the boy, he will have many problems.
1 not help
2 will not help
3 don't help
4 didn't help​​