题目内容：

英语28.My sister has never played badminton before.This is the first time she ________to play.
28.My sister has never played badminton before.This is the first time she ________to play.
A.is trying B.have tried C.has tried D.was trying
为什么

优质解答

固定句型It/This is the +序数词 time (that)sb. has done sth.
It/This was the +序数词 time (that)sb. had done sth.
（这是某人第几次做……）