Many argue that the world will never make the switch to cleaner forms of energy __________ easily obtainable oil sources remain.
A.suppose that
B.providing that
C.unless
D.as long as

Hard work is __________ success, even though you are intelligent.
A.fundamental to
B.urgent to
C.important with
D.basic

I asked the witness to move the lorry, __________ he drove into my car.
A.nevertheless
B.notwithstanding
C.inasmuch as
D.whereupon

__________ down to dinner than the telephone rang.
A.No sooner I sat
B.No sooner had I sat
C.Hardly had I sat
D.Scarcely I sat

Please remain in your assign seats until the instructor dismisses the class.
A.in
B.assign seats
C.until
D.dismisses

Employees who haven’t seen the new regulations often ask for unnecessary questions; instead they should ask for a copy of the regulations and read them.
A.who
B.ask for
C.instead
D.read them

We have always believed that honesty is best policy in personal as well as professional matters.
A.have always believed
B.best policy
C.personal
D.professional

In Roman numerals, ____________symbols for numeric values.
A.letters are the alphabet’s
B.letters of the alphabet are
C.which uses letters of the alphabet
D.in which letters of the alphabet are

A.infamous
B.appal
C.organize
D.recognize

A.argumentative
B.contributory
C.hypersensitive
D.psychological