it is the first time that i have come to China

题目

it is the first time that i have come to China
have you ever been to the summer palace?
no,it is the first time that i ( B ) to China
A.come B.have come C.am coming D.came
为什么选B,麻烦具体分析

答案

固定句型.It is the first/second/third...time that sb.has done sth.这是某人第一/二/三...次做某事.如果是过去,则时态向过去推一个.It was the first/second/third ...time that sb.had done sth....