Question

Помогите пожалуйста не могу сделать только 9 номер

Answer 1

1 Jack has been doing chemistry since 2009.
2 We have been preparin Christmas decorations all the morning.
3 Fiona has been working on the computer since the beginning of the school year.
4 We have been playing football for half an hour.
5 The Wilsons have been traveling Australia for about two months.