The word “prosperity” in the first paragraph could best be replaced by ______.
A.success
B.education
C.nurturing
D.surplus

Commercial airliners do not fly in the vicinity of volcanic eruptions because even a small amount of volcanic ash can damage its engines.
A.in the vicinity
B.amount
C.ash
D.its

If you have no cash, you can charge this dinner of your credit card.
A.cash
B.this
C.of
D.credit card

Do you know that there is a high rate in interest on this loan?
A.know
B.is
C.in
D.on this loan

She was unhappy that she got in touch with a lot of her old friends when she went abroad to study.
A.put in charge of
B.made room for
C.lost contact with
D.lost control of

His boss has had enough of his respect, and doesn’t want to hire him any more.
A.agreement
B.rudeness
C.impudence
D.obedience

_________(41)
A.questionnaires
B.studies
C.researchers
D.interviews

_________(43)
A.task
B.necessity
C.reason
D.duty

_________(45)
A.comes
B.turns
C.concerns
D.refers

_________(46)
A.of
B.opposite
C.next to
D.across