It was three o’clock _______ he came back from work.

——The Thirteen Women in Nanjing directed by Zhang Yimou is said to be well worth seeing.——You must be kidding! It’s one_____in at least a year.

---Tom has been fired by his boss． ---              ? As far as I know, he is a hardworking and considerate fellow．

As middle school students, we _____ the police to keep order.

 I ________ thank you too much for all your help to my son while we were away from home.