The manager would rather his daughter______in the same office.
A.had not worked
B.not to work
C.does not work
D.did not work
One machine can do as much work as ______.
A.40% of the people
B.4% of the people in the world
C.40 people
D.75 000 people
He felt very tired because he ______ 18 hours without a rest.
A.had worked
B.worked
C.was working
D.had been working