1.Although he thought he was helping us prepare the dinner, he was actually ___ the way.
A.by
B.in
C.off
D.on
2.By the year 2020, scientists probably ___ a cure for cancer.
A.will be discovering
B.are discovering
C.have discovered
D.will have discovered
3.Had Paul received six more votes in the last election, he ___ our chairman now.
A.must have been
B.would have been
C.were
D.would be
4.The car driver, ___ shoulders rested the entire blame for the accident, was sentenced to two years in prison.
A.whose
B.on his
C.of whose
D.on whose
5.The elimination of inflation would ensure that the amount of money used in repaying a loan would have ___ as the amount of money borrowed.
A.as the same value
B.the same value
C.value as the same
D.the value is the same