原因
Though itwas the first time that I _____the old town,I fell in love with it immediately答案是had visited
为什么不能用一般过去时 visitedIt is the first time that主语+现在完成时态结构例如：It is the first time that I have come to Beijing (强调说话当前说话情景）（也就说话人是在该事件发生时候说的话）（主语一般现在时态，从句现在完成时态）It was the first time that 主语+过去完成时态 结构I...
