Soluzione del esercizio Think it out di Engage B2 with Exam Skills

Esercizi svolti per il libro Engage B2 with Exam Skills

Soluzione

  1. We use need to to express necessity.
  2. We use have to to express an obligation which comes from the outside.
  3. We use must to express an obligation which comes from the speaker.
  4. We use don’t have to, don’t need to and needn’t when we talk about lack of necessity.