题目内容
15、Kate knew nothing about it __________ I told her．
A．since B．because C．until D．after
试题答案
15、C 考查连词。since“自从”；because“因为”；until“直到”；after“在……之后”。句意“关于这件事情Kate一无所知，直到我告诉她(她才知道)。”
Kate knew nothing about it __________ I told her．