.Oh, Jane,you ’ve broken another glass.you ought ________when you washed it.
—Thanks a lot for your book. I found it very interesting.—________. I’m glad you enjoyed it.
________ one of you breaks the window will have to pay for it.
________ makes the book so extraordinary is the creative imagination of the writer.
No one ________ the building without the permission of the policeman.
We usually take turns ________ some cleaning, and today it is my turn ________ it.