18．It was a very long day for Jack． He didn’t get home from school ________six o’clock．

题目：18．It was a very long day for Jack． He didn’t get home from school ________six o’clock．

A． since
B． to
C． by
D． until

喵查答案：D

18．D【解析】句意：对于Jack来说这是漫长的一天，他直到六点才从学校回到家。固定短语not…until．．．直到……才……。