用所给短语的正确形式填空。 right away as if in ruins dig out be buried in suffer from be proud of even if a great number of at an end be trapped in in the end （1） Shewas her son. He did well at university and now is a doctor. （2） Thehouse began to shake, so all the students must leave the house . （3） Infifteen terrible seconds a large city lay . （4） Heacted he was a doctor. （5） Sinceshe left, he is his work. （6） Myfather has his heart illness for about 20 years. （7） Theyear is .