Ⅰ.用适当的介词或副词填空
1．He went sailing and did not show ________ for a long time.
2．The road that leads to Nanjing came into ________ last month.
3．They were writing when Michael knocked ________ the door.
4．We will debate the subject at length later when we are ________ leisure.
5．I heard that he deleted my name ________ the list yesterday.
