Ответ:

Перевод задания: Поставьте глаголы в правильную форму.

It has been long since I wrote a letter to you. At last, I am in London. The weather is nasty. It has been raining all day today. I think it always rains on Sundays in London. Anyway, it has been raining every weekend since I came to Britain three months ago. I am getting used to it, but I find it rather dull. But I am enjoying my stay here as I [продолжение предложения обрезано].

Последняя часть упражнения обрезана на изображении, поэтому восстановить оставшиеся глаголы достоверно невозможно.