He was so tired that he fell asleep ___he went to bed.[ ]

Many students say that they are willing to work hard to get more education

Where did you get the book? —- From the library．And I have _______it for two weeks．

What’s the Chinese _____ “clock”?[ ]

Do you know what Millie and Andy were doing at 8 o’clock yesterday?—Yes.While Millie ______ TV, Andy ______ a book in the bedroom.