The word regulate in the passage is closest in meaning to
A. protect
B. create
C. reduce
D. control
Why does the author mention "bog-iron" in paragraph 2？
A. To demonstrate the availability of iron in Scandinavia
B. To prove that iron was better than bronze for weapons
C. To argue that the Celts provided the materials to make iron
D. To suggest that 500 B.C. was the date that the Iron Age began
In paragraph 4, the author suggests that Beowulf was discovered in the
A. first century
B. ninth century
C. eleventh century
D. seventeenth century
【B7】
A. as
B. who
C. but
D. which
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