Carlos usually ___(sit) in the main office, but today he _____(work) at home.
sits/is working
What time ................ (you / have to) leave home to get to work?
do you have to
Look at the woman over there. Why ..............(she / sit) at John's desk?
is she sitting?
What...............(Nadia / think) about her new boss?
does Nadia think about
You're very quiet today! ....................... (you / think) about your presentation?
Are you thinking about....?
Excuse me, what............ (you / do) in this room? This is for staff only.
What are you doing in thi room?
A Whose is this briefcase? B I____(think) it _______(belong) to one of our visitors.
I think it belongs ...............
They................(have) lots of problems with the new lifts these days
They are having lots of problems ...........
