第一题:
It is /was /will be the +序数词+time+(that)从句.表示某人第几次做某事.
像这种要特别注意主从句的时态:主句用一般现在时,从句用现在完成时;主句用一般过去时,从句用过去完成时;主句用将来时,从句用一般现在时!
第二题
As the project came up at the meeting,it drew our attention.
As the project came up,当这个项目被提出时
例如:
被提出,被讨论
A number of questions came up at the meeting.
会议上提出了许多问题.