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    It is when the plane that you’d better find out at the booking office. A. would take off B. had taken off C. was taking off D. is taking off 9. --- I’m sorry, but there’s no smoking on this flight. --- Oh, I that. Sorry, I won’t again. A. don’t know B. didn’t know C. won’t know D. haven’t known 10. --- I dropped in at your house at about ten last night, but you weren’t in. --- I regular exercises at the club. A. did B. was doing C. had done D. have been doing 11. --- Who’s the man over there? --- It’s Jack. --- Oh? in Italy. A. I think he’s B. I’ve thought he’s been C. I thought he was D. I’d thought he’d been 【查看更多】

     

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    It is when the plane ______ that you’d better find out at the booking office.

        A. would take off           B. had taken off

        C. was taking off           D. is taking off

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    It is when the plane ______ that you’d better find out at the booking office.


    1. A.
      would take off
    2. B.
      had taken off
    3. C.
      was taking off
    4. D.
      is taking off

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