Nyanna
1) Jake has been doing chemistry since 2009 2) We have been preparing 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 travelling Australia for about two months
Answers & Comments
2) We have been preparing 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 travelling Australia for about two months