Ответьте какое время у этих предложений и почему (Past Simple или Present Perfect) 1)They went to the theatre last week 2)My cousin has been to the theatre three times this week 3)His niece just written the invitation letter 4)...

1)They went to the theatre last week - PS 2)My cousin has been to the theatre three times this week-  PP 3)His niece (has) just written the invitation letter -PP 4)Helen came home,had a short rest,and then began to help her mother - PS 5) Did your relatives take part in the demonstration yesterday? - PS 6)Have your parents told you about the project today - PP

1)They went to the theatre last week-Past Simple,так как действие закончилось в прошлом ,по факту 2)My cousin has been to the theatre three times this week-Present Perfect,результат действия связан с настоящим 3)His has niece just written the invitation letter-Present Perfect,результат действия связан с настоящим 4)Helen came home,had a short rest,and then began to help her mother.Past Simple,так как действие закончилось в прошлом ,по факту 5) Did your relatives take part in the demonstration yesterday?-Past Simple,так как действие закончилось в прошлом ,по факту 6)Have your parents told you about the project today?-Present Perfect,результат действия связан с настоящим