We regret ______ that the film was not worth _________.

concentrated for a long time he____ his work, made some coffee and talked with his colleagues

I remember I have been here before. There used to be a church near the park, _____? [ ]

President Hu Jintao urged that every effortto rescue and treat the injured when the earthquake happened in Sichuan this year．

________ so much trouble, we failed to complete the task ontime.