Question

which method of forming questions is this? la estudiante termina la tarea, ¿no? options: intonation, inversion, question words, adding
o\

Explanation:

The Spanish sentence is a tag question, formed by adding the tag ¿no? (a form of adding "no") to the end of a declarative statement to seek confirmation. This matches the "adding 'no'" method.

Answer:

adding "no"