—It’s reported that the new underground line has been completed． —Yes but it hasn’t been made clear...
2023-02-12 22:29:05 172次 2010年海淀区三模 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
—It’s reported that the new underground line has been completed．
—Yes but it
hasn’t been made clear
it’s to be opened to traffic．
A．that
B．who C．what D．when
本题链接：
