choose the best spanish word to complete the sentence. amalia y grisela están______ una canción. escribando…

Brief Explanations:

The sentence is in the present - continuous tense in Spanish. The correct form of the verb "escribir" (to write) in the present - continuous for the third - person plural "Amalia y Grisela" (they) is "escribiendo". The present - continuous in Spanish is formed by using the verb "estar" + the present participle of the main verb. The correct way to form the present participle of a verb ending in - ir like "escribir" is by changing the - ir to - iendo.

Answer:

B. escribiendo