• 2022-06-06
    John as well as Jack () just been back from an important meeting.
    A: have
    B: has
    C: had
    D: must have
  • B

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    • 0

      The meeting ________(go) well if you had been better prepared. A: would have gone B: will go C: went

    • 1

      He looks tired. He ______ a sleepless night. A: must have been B: must have had C: must be D: must have

    • 2

      From the evidence that they had collected, the police _____________(conclusion) that Paul must have been the murderer.

    • 3

      It can be inferred from the measurements that 20,000 years ago, ______. A: The weather must have been warmer. B: The weather must have been colder. C: The weather had remained almost the same. D: The weather had changed a lot.

    • 4

      Scientists think that there _____ life on Earth for millions of years. A: has had B: have had C: has been D: have been