问题
选择题
His grandma ________ ______ two years.
A. died; since B. has been dead; for C. has died; for
答案
B
题目分析：句意：他奶奶去世两年了。die是短暂性动词不和时间段连用，应该用其形容词形式，since后加时间点，for后加时间段。这里two years是一段时间，用for。故选B。
考点: 考查动词时态的用法。