Choose the correct answer. (Выбери правильный ответ).

1. __________ during the lesson.

a)not talk
b)Don't talk
c)Don't to talk

2. __________ warmly, it's hot outside.

a)Dressing
b)To dress
c)Don't dress

3. __________ your teeth before you go to bed.

a)Brushing
b)Brush
c)To brush​