问题补充:
When I met Daniel at the station the first time, he was in the waiting hall .
A. for; alone
B. at; alone
C. for; himself
D. at; by himself
答案:
(答案→)A. for; alone
B. at; alone
C. for; himself
D. at; by himself
解析:根据语境可知此句的含义是当我第一次在车站遇到丹尼尔的时候,他正自己在候车大厅里。介词短语for the first time表示第一次;alone表示独自一人,有选择项的提示可知选择A。