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题目内容
（信阳师范学院当代英语语法概论）
John was going out of the hotel with luggage when he collided with an old man who __________ in.
(本题1.0分)
A、 was coming
B、
had come
C、 come
D、
had been coming
(本题1.0分)
A、 was coming
B、
had come
C、 come
D、
had been coming
参考答案