15. With the reform of educational system, the teachers_____school I worked before have greatly changed their way of teaching.
Our refrigerator is ________ again.We'd better buy a new one instead of repairing it.
An artist who was recently traveling on a ferry to the southern island discovered ________ a long lost antique Greek vase.
I am always delighted when I receive an email from you.________ the party on July 1st, I shall be pleased to attend.
________ his career as an actor he never gave up his hope of becoming a Hollywood star.
Mrs.Smith finds it hard to clear up the mess, as her children are always ________ whenever she tries to.