Question

1. The public health center .... together for more than twenty years.
a.works,b.worked,c.is working,d.has been working,e. will have worked
2.I did while you .... the yard
a.clean,b.cleaned,c.had cleaned,d.were cleaning,e.have been cleaning.
3.Oh sorry I forgot to tell you that I..... in Bali since last year.
a.am living,b was leaving,c.have to live,d.will have lived,e.have been living.
4.Yesterday. My family.... when the postman arrived.
a.have lunch,b.will have lunch,c.were having lunch,d.will have had lunch,e.have been having lunch

Answer 1

1. D Has been
2. B Cleaned
3. E Have been living
4. D. Will have had lunch

Answer 2

1. The public health center has been working together for more than twenty years.
2. I did while you were cleaning the yard.
3. Oh sorry, I forgot to tell you that I have been living in Bali since last year.
4. Yesterday, my family were having lunch when the postman arrived.