IT IS ESSENTIAL THAT SHE________ BEFORE HALF PAST EIGHT.A. ARRIVES...

45. It is essential that she________ before half past eight.

A. arrives

B.will arrive

C. must arrive

D. arrive

Read the following passage and mark the letter A, B, C, or D to indicate the correct

answer for each of the blanks.

The big issue for plane-makers planning for the future is size, not speed. With the skies

already full of air traffic, and with worse to (46)_________ , the important questions for

the designers are how many passengers they can fit into the new super-planes and who

will be (47) to build them first. Imagine yourself ten years from now in a packed airport

departure lounge. Eight hundred passengers are waiting with you for their first flight on

one of a remarkable range of super-planes, and the check-in time (48)__________ have

been as much as four hours before take-off to allow for the extra people. Impossible? Far

from it. Designs for these planes are already (49)_________ on computer at the world’s

top aircraft manufacturers, waiting to be turned (50)_________ reality. The airlines badly

need the new jets to (51)________ with future increases in passenger (52)________ . A

billion passengers a year are currently carried by air, but that figure is (53)___________ to

double by the year 2020. The only practical of avoiding making the skies even busier is to

build much bigger planes. The race to build the new jets is the hottest contests in the

airliner business. Manufacturers are working (55)______ with the major airlines to

produce designs that will please airlines and passengers alike.