1. 我们该去吃午饭了。 It's time ___________ us ___________ have lunch. 2. 这座楼房和那座楼房一样高。 This building is as ___________ ___________ that one. 3. 如果你不早起,上学就会迟到。 ___________ you don't get up early, you'll ___________ late for school. 4. 约翰跑得如此快,以至于我赶不上他。 John ran ___________ fast ___________ I couldn't catch up with him. 5. 昨天他直到做完作业才去睡觉。 He did ___________ go to bed ___________ he finished his homework yesterday.