Question

Usually he gets up at 6 o'clock ________ the morning．But ________ the morning of October 1st he didn't get up until 10 o'clock． [　　] A． in, at B． on, on C． in, on

Answer 1

答案：C
解析：

点拨本题考察的是介词in和on的用法。in习惯于用于短语in the morning/in the afternoon/in the evening。on用在具体某一天的早上、中午或晚上。