• 2022-06-30
    Please don't call me at the office _______ it's really necessary.
    A: if
    B: unless
    C: unless if
    D: Except
  • B

    内容

    • 0

      I don't want to hear your opinion — unless it's __________ of course.

    • 1

      This is Mr. Green’s office, but I’ll transfer your call to Mr. Baker’s office. Please don’t hang up. (翻译句子)

    • 2

      Don’t use a speakerphone unless you're in your own office and remember to close the door if you do.

    • 3

      If your phone rings or buzzes, don’t take it ________ it’s an emergency. A: unless B: if C: until

    • 4

      Anyone who doesn’t have a reservation is taking a chance unless you don’t really care whether you have a place to stay.