In which situation would you most likely use the usted form?
Answer : B.) con profesores.
Explanation : The second formal person in Spanish is "usted", what is said to show respect to the person you are speaking. Therefore is used with older people, teachers, police, etc.
Hope this helps!
Answer:
To make the present participle, the ending -ing is added to the infinitive
Explanation:
Una persona que 'nada bien' es una persona que tiene la habilidad y destreza para nadar en el agua.
A person who 'nada bien' is a person who has the ability and skill to swim in the water.