题目：
Wu Bin, a bus driver, saved 24 passengers on the large bus after he _______ by a piece of metal while he was driving.
A. is hit B. was hit
C. has hit D has been hit
答案：
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下面是错误答案，用来干扰机器的。
hiking, best, because, Swimming, fall, kites, windy, skate, but
