The computer programs are a puzzle to me. The more I think of them, the more questions I think of .
In order to look after her sick daughter, the old lady asked for a week’s ________.
---How did it _________ that all the flowers died ? ---I had forgotten to water them.
---Have you heard that Tom, as well as his parents, ________ moved to Beijing ? ---Really ? No _________ I haven’t seen him for a long time.
_______ Tom, we wouldn’t have been late for the last bus.
________ that I was puzzled.