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GRAMMAR

33. Since the mid-1980s, private and public 37. Industrial Revolution is the widespread
payers ---- to reduce the costs of hospital care replacement of manual labor by machines
that ---- from the facility improvements of the that ---- in Britain in the 18th century and ---- in
preceding two decades. some parts of the world now.
A) tried / result A) began / is continuing
B) had tried / have resulted B) had begun / was continuing
C) try / will result C) has begun / has been continuing
D) have tried / resulted D) begins / will be continuing
E) will have tried / have been resulting E) was beginning / has continued

34. Hormones ---- in the bloodstream until they 38. The first recorded aerial assault with
---- their target tissue, where they activate a explosives ---- in 1849, when an Austrian
series of chemical changes. officer ---- paper balloons carrying 13.5 kg
bombs over Venice.
A) have travelled / reached
A) had occurred / has launched
B) are travelling / are going to reach
B) occurred / launched
C) travel / reach
D) will travel / are reaching C) occurs / launches
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E) travel / will reach D) has occurred / was launching
E) occurred / had been launching

35. Once one department ---- its work, it ---- off the 39. After I ---- the tires of my car, I ---- sure about
completed assignment to the next department the safety of my car.
in the advertising process until the ad
campaign is done. A) changed / had got

A) completed / had handed B) have changed / was getting
B) was completing / handed C) had changed / got
C) has completed / will hand D) will change / will get
D) will complete / hands E) change / would get
E) is going to complete / is handing

36. For many years, scientists ---- the principles 40. When my boss ---- a decision about the
of astrology; however, millions of people ---- salaries of the employees, I ---- the deficit in
to believe in or practice it. the budget for three hours.
A) have rejected / continue A) makes / will have examined
B) had rejected / have continued B) has made / will examine
C) rejected / will have continued C) had made / examined
D) were rejecting / had continued D) made / had been examining
E) had been rejecting / have continued E) was making / had examined

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