Надо выбрать либо present perfect continuos/present perfect/present simple/present continuos 1) why are my books all over the floor& 0 helen (look) at them. 2) older people (become) more isolated now. 3) i know that since january he (be) in charge of the marketing division. 4) katia says she (be) very tired recently. she (work) almost sixty hours a week for the past month.

1) why are my books all over the floor? helen is looking at them. -  почему мои книги по всему полу? хелен смотрит  их.   2) older people become more isolated now.- пожилые люди становятся все более изолированными сейчас. 3)   i know that since january he has been    in charge of the marketing division. -  я знаю, что с января он   начальник отдела маркетинга.   4) katia says she has been  very tired recently. she worked (или has been working)  almost sixty  hours a week for the past month. -  катя говорит, что она устала в последнее время. она работала  почти шестьдесят часов в неделю в течение прошлого месяца.

1) why are my books all over the floor helen (is looking) at them.   2) older people (become) more isolated now. 3)   i know that since january he (has been) in charge of the marketing division.   4) katia says she (has been)  very tired recently. she (has been working) almost sixty hours a week for the past month.

january 1-3 - new year

january 7 -christmas

the date changes every year - easter

february 23 - the day of motherland protector

march 8- international women's day

april 12 - astronaut's day

may 1- labor day

may 9 -victory day

june 12 - independence day

november 4 - the day of national unity