Most of the older civilizations which flourished during the fifth century B.C.ar

游客2023-12-31  23

问题 Most of the older civilizations which flourished during the fifth century B.C.are died out.

选项 A、they have died out
B、has died out
C、have died out
D、they had died out

答案 C

解析 本题考查结构应用。本句是个复合句,分析句子成分可知,Most of the oldercivilizations是主语,且为复数。which flourished during the fifth century B.C.为定语从句,修饰主语。因此,画线部分应作句子的谓语。因此,答案是C。
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