Question

 Помогите! 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.

Answer 1

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.

Answer 2

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 очень устала в последнее время. Она работала почти шестьдесят часов в неделю в течение прошлого месяца.