___ in the regulations is that you ___ other people the password of your e-mail account. A.What is required; not tell B As is required; shouldn't tellC.It is required; not tell D.It requires; shouldn't tell
You ________ to leave until you _______ your work.
―________ you _________ the chief editor at the airport?―No. He _______ away before my arrival.
―Did you meet Professor Johnson?―Yes, but when I arrived, he ________, so we only had time for a few words.
―Have you finished your composition already?―Yes. I _________ it in twenty minutes.
He traveled to many mountain villages and saw many poor children out of school. This experience _______ his life.