• 2022-06-05
    Pollution has become a great ___________ to our daily life.She’s been receiving ___________ phone calls lately.
    A: threaten; threat
    B: threatening; threat
    C: threat; threaten
    D: threat; threatening
  • D

    内容

    • 0

      The pupils were quieted at once on the teacher's threat to keep them in after school.When the teacher __________. (threaten)

    • 1

      Serious environmental pollution has posed a threat to people’s life and health. A: introduced B: affected C: challenged D: assumed

    • 2

      A way to counter a threat is to be ignorant.Cut off communications so that the threatener is unsure whether their threatening messages are being received.

    • 3

      It is ( ) that terrorism is a great threat to world peace.

    • 4

      Porter’s Five Forces are inculding ( ) . A: Competitor B: Bargaining power of buyers C: Threat of substitutes D: Threat of new entrants