Question

Use the correct form of the verb ser or estar:
Ellas __________ muy tristes.

When entering your answers for fill in the blank and essay questions, please be sure to use accent marks and/or correct punctuation to avoid your answer being marked incorrect.

You may copy and paste the accented character or punctuation mark from this list if needed:
á é í ó ú ñ Á É Í Ó Ú ¿ ¡

Answer 1

They are very sad.
Hint: Use estar when it is a state of the subject, something that is not permanent . Use ser when it is a quality of the subject (and normally a quality is permanent).

She is tired (is to be tired a quality or a specific state?) She is clever (is to be clever a quality or a specific state?). Ask the same question with "sad". One is always sad or there are moments one is sad?

Answer 2

Estar!

Ser is to describe a permanent fact about someone. Like their nationality, height, skin color, etc. For example: "Nosotros somos chicas mexicanas." We are Mexican girls, a fact about ourselves that we can't change.
Estar is used to describe temporary over ever-changing facts, such as emotions, health, and place. For example: "Ella esta en la tienda." She is in the store, but twenty minutes from now she will be home.

Answer 3

Estan