我们该去吃午饭了. It's time ____ us ___ have lunch
这座楼房和那座楼房一样高
Thisbuilding is as __________ that one
如果你不起床,上学就会迟到
___ you don't get up early, you'll ____late for school
昨天他直到做完作业才去睡觉
He did ____ go to bed ___ he finished his homework yesterday