问题描述：
(D)My uncle has been here____.
A) for five o'clock B)since five hours C)five hours ago D)since five o'clock
答案我知道了,谁告诉下,
A) for five o'clock B)since five hours C)five hours ago D)since five o'clock
答案我知道了,谁告诉下,
问题解答：
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