Переведите на британский язык слова в скобках в Past Simple!!!!! Очень

1 a lot of houses have been built in Moscow.
2 when was this letter written?
3 many places of interest are visited by tourists.
4 when was this article translated?
5 English is spoken in many countries of the world.
6 the studen is being asked many questions by the teacher now.
7 the film was being shown when we entered the hall.
8 the device was tested by last month.