【題目】—Do you know the most ancient city in China—Xi'an well?
—No, this is the first time I ________ here.
A.had come
B.am coming
C.have come
D.came

【答案】C
【解析】句意：---你對中國最古老的城市——西安了解的多嗎？---不，這是我第一次來這兒。It/This/That be the first/second time that sb.+完成時，表示“某人第幾次做某事”，根據(jù)主句用現(xiàn)在時，故從句用現(xiàn)在完成時候，選C。

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