__________(46)
A.is proving
B.has proved
C.proved
D.had proved

__________(44)
A.artificial
B.synthetic
C.compound
D.man-made

Choose the best answer A, B, C or D to complete sentences.
She likes to study................ at university.
A.economy
B.economic
C.economics
D.economical

Choose the best answer A, B, C or D to complete sentences.
The actress was very............. dressed in an outfit.
A.expense
B.expensive
C.inexpensive
D.expensively

Choose the best answer A, B, C or D to complete sentences.
I thought the painting was worth a lot of money, but it turned out to be comepletely............. .
A.value
B.valuable
C.invaluable
D.valueless

Choose the best answer A, B, C or D to complete sentences.
I told the manager I thought the increase in price was totally.................... .
A.accepting
B.accepted
C.unaccepting
D.unacceptable

__________(43)
A.will be done
B.is doing
C.is being done
D.will do

Choose the best answer A, B, C or D to complete sentences.
Banks are willing to lend us more and more money to us because they profit from it by charging us................... .
A.fun
B.excitemnet
C.interest
D.happiness

__________(41)
A.with
B.about
C.for
D.of

Choose the best answer A, B, C or D to complete sentences.
This car is very............ as it goes so far on one tank of petrol .
A.financial
B.economical
C.costly
D.endless