• 2022-05-29
    Both his parents look sad. Maybe they_______ what's happened to him.
    A: knew
    B: have known
    C: know
    D: will know
  • B

    内容

    • 0

      智慧职教: Both her parents look sad. Maybe they (        ) what had happened to her.

    • 1

      If I ___________his email address, I would have sent him a message yesterday. A: know B: knew C: had known D: have known

    • 2

      If only I _______ about his coming, I would have met him at the station. A: would know B: had known C: have known D: knew

    • 3

      If I (__) his e-mail address, I would have sent him a message yesterday. A: have know B: had known C: will know D: know

    • 4

      I would ask George to lend us the money if I ______ him. A: had known B: knew C: have known D: know