• 2022-06-06
    (), I didn’t know how to use the machine.
    A: At beginning
    B: At first
    C: At start
  • B

    内容

    • 0

      Do you know ____ to start the machine? A: how B: what C: who D: which

    • 1

      I didn’t know where I should go.I didn’t know ____________.

    • 2

      I didn’t know _______ he will come or not. A: that B: whether C: weather D: how

    • 3

      I felt quite (confuse) ________ when I was first at college. I didn't know what courses to take.

    • 4

      When I saw these big figures, I was _____ (感到震惊). I didn’t know how to handle them.