—Who do you think ________the book here?
—It may be John.He was sitting here all the morning.
A.was leaving B.leaves
C.had left D.has left
Mum,you really need to have a rest!You ________in the kitchen ever since you came back home three hours ago.
A.had worked B.were working
C.have been working D.worked
I have called the station and they told me the next train for Dalian ________at 3∶10.
A.will leave B.left
C.has left D.leaves
Who do you think ________ for the accident?
A.to blame B.to be blamed
C.is to be blamed D.is to blame
—When did you move to Qionghai?
—In 2009.But I ________in Haikou for many years.
A.have worked B.would work
C.have been working D.worked
We ________for cheap houses but haven’t found ________we like yet.
A.are looking;one B.have looked;it
C.have been looking;one D.looked;them