Read these sentences and choose 'must' or 'mustn’t'. 1. We stand up when the teacher arrives in the classroom. 2. You bite nails. 3. You turn the music too loud.
Задание

Read these sentences and choose 'must' or 'mustn’t'.

  1. We must  stand up when the teacher arrives in the classroom.

  2. You  mustn't  bite nails.

  3. You  mustn't  turn the music too loud.