– Have you ever been to the city before?– No. This is the first time I here.A. wasB. have

– Have you ever been to the city before?
– No. This is the first time I here.
A. was
B. have been
C. come
D. am coming

A. was(答案→)B. have beenC. comeD. am coming解析：考查固定句式中的时态。It /That/This is the...time that sb have done sth；It /That/This was the...time that sb had done sth。结合日常生活实际，能够计算到这是第几次做某事，表明该动作已经发生，因此，要用完成时态——主句用现在时，从句用现在完成时；主句用过去时，从句用过去完成时。句意：—你之前来到这个城市吗？—没有，这是我第一次来这里。因为本句前面使用了is，故B正确。

这个解释是对的

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