49. (A) To give an example of natural shapes.
(B) To describe early sculpture.
(C) To illustrate their use as tools.
(D) To demonstrate their role as decorative
objects.
50. (A) They are always made of stone.
(B) They are painted in bright colors.
(C) They contain moving parts.
(D) They make use of holes.
Section Two: Structure and Written Expression
1. Most geologists believe—from the remains of
tiny marine plants and animals that died
millions of years ago.
(A) what was formed petroleum
(B) that petroleum was formed
(C) when petroleum formed
(D) petroleum that formed
2. The seat of France’s North American holdings
in the eighteenth century was Quebec, and the
French heritage—dominant there.
(A) to remain
(B) remaining
(C) by remaining
(D) has remained
3. If Earth did not rotate, differences in air
pressure would be —, with winds blowing
from high-pressure to low-pressure areas.
(A) primary air flow to cause
(B) the primary cause of air flow
(C) they primarily cause air flow
(D) air flow has a primary cause
4. A mobile is a sculpture constructed of pans so
delicately connected and balanced—the entire
suspended structure may be moved by
vibration or manual manipulation.
(A) in order
(B) making
(C) with
(D) that
5. The ice of a glacier that reaches the sea breaks
off—.
(A) and forming icebergs
(B) to form icebergs
(C) icebergs have-formed
(D) when the formation of icebergs
6. Migraine headaches are more frequent among
women— among men.
(A) than
(B) however
(C) except for
(D) as air
7. South American flamingos can survive in
temperatures—above the freeing point.
(A) that fewer degrees
(B) if few degrees
(C) only a few degrees
(D) when fewer degrees
8. Made of hard wood, the boomerang is roughly
V-shaped, with arms— skewed
(A) of slightly
(B) are slightly
(C) slightly
(D) that those are slightly
9. Not until the late nineteenth and early
twentieth centuries—as a unified science.
(A) did ecology emerge
(B) when ecology emerged
(C) ecology emerged
(D) when did ecology emerge