Question

Isn't necessary for you to join your school's swimming team. You don't have to join your school's swimming team.You mustn't join your school's swimming ​

Answer 1

Ответ:

1.Не обязательно, присоединяться к школьной команде по плаванию.

2.Вам не нужно(не стоит) вступать в команду вашей школы по плаванию.

3.Вы не должны присоединяться к плаванию в вашей школе

Я думаю,правильно будет вырать 1.

Answer 2

All three of the sentences you provided convey slightly different meanings when it comes to the necessity or requirement of joining the school's swimming team. Let's break down the nuances of each sentence:

1. "Isn't necessary for you to join your school's swimming team." This sentence suggests that joining the school's swimming team is not required or essential. It implies that it's optional, and you can choose whether or not to join the team.

2. "You don't have to join your school's swimming team." This sentence also communicates that joining the swimming team is not obligatory. It emphasizes that there is no obligation or pressure for you to become a member of the team. It's up to you to decide.

3. "You mustn't join your school's swimming team." This sentence takes a stronger stance. It indicates that joining the swimming team is prohibited or strongly discouraged. It's advising you not to join the team, possibly due to some specific reasons.

In summary, the sentences differ in their level of necessity or prohibition, ranging from optional to strongly discouraged. The choice of which sentence to use depends on the context and the intended message you want to convey.