问题
选择题
Fred’s grandfather _______three years ago. He _______for three years.
A．died; died
B．was dead; died
C．died; has been dead
D．died; has died
答案
答案：C
die是非延续性动词，不能和段时间状语连用；be dead 表示状态，可以和段时间状语连用。
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