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- 251053
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- 2007-6-30
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- 1970-1-1
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帮你粘贴个解释
he key to solve is understanding "the sequence of events" and "the verb tenses"
In the seventh century B.C., the Roman alphabet was adapted from the Etruscan alphabet, [event 1]
which in turn had been adapted in the previous century from a western Greek alphabet, [event 2]
which itself had been adapted earlier in the same century from the Phoenician alphabet. [event 3]
From the meaning we can understand that
Sequence: "event 1" happened after "event 2" happened after "event 3"
Tenses: "was" > "had been" > "had been"
Tenses: "past" > "past perfect" > "past perfect"
Since "had been (past perfect)" is used (non-underlined) for event 2, we should use "had been (past perfect)" for event 3.
(though usage of "had been" for event 2 and event 3 are not necessary as the timelines [centuries before/after] are clearly provided)
A. which itself had been adapted earlier
- maintains the correct tense for the correct sequence
B. adapting itself earlier
- "adapting" makes event 3 as modifier to event 2
C. itself being adapted earlier
- missing correct clause connector (which/that/whose/etc). "being adapted" is past tense, we should use only past perfect tense
D. having been earlier adapted itself
- "having" makes event 3 as modifier to event 2
E. earlier itself having been adapted
- missing correct clause connector (which/that/whose/etc). "having been adapted" is past tense, we should use only past perfect tense
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