问题补充：
It was the first time she her motherland.
A. has left
B. left
C. had left
D. leaves
答案：
A. has left
B. left
(答案→)C. had left
D. leaves
解析：考察固定句式的时态。固定句式：It /That/This is the...time that sb have done sth；It /That/This was the...time that sb had done sth。“这是某人第几次做某事的时候了”；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。本题前面使用了was，故后面使用过去完成时。故C正确。
