• 2022-06-06
    The police still haven’t found the lost child, but they’re doing all they ______.
    A: can
    B: may
    C: must
    D: should
  • A

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    • 0

      Water______bechangedintogas,butit______beheatedtoitsboilingpoint. A: must;can B: may;needn’t C: can;must D: need;may

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      45() A: must B: can C: may D: should

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      -You have found your lost cat, haven't you?-Yes.I ________ it in the office this evening. A: have found B: will find C: found D: find

    • 3

      People_____exercise regularly. A: can B: may C: must D: should

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      The police ______ the evidence last time, but they did not. A: must have found out B: should have found out C: must find out D: could find out