1. So _______________________ (地震发生得如此突然) that no one managed to escape from their collapsing houses. (occur)
2. _______________________ (天气真好) it is! Let’s go for an outing today. (weather)
3. It is said that the new model car _______________________ (快两倍) than the old one. (run)
4. It was not until the baby girl was sound asleep _______________________ (父母才有时间) to deal with their personal affairs. (have)
5. _______________________ (无论我怎么努力), my parents never seem to be satisfied with my work. (try)
