The answer to the first one is 1) Las comedias son serias. The answer to the second one is d. Miguel y Yolanda I believe. I hope this helps and I hope I didn't get either of them wrong. They seem about right to me.
Answer:
In what do you need help? You can ask me anything, my first language is Spanish.
Explanation:
un - masculine singular
una -feminine singular
unos - masculine plural
unas - feminine plural
UN lápiz - a pencil
UNAS tareas - some homework
UNOS borradores - some erasers
UNAS mochilas - some backpacks
UNOS libros - some books
UNA calculadora - a calculator
UNOS papeles - some papers
UN examen - a test
Many times we can find the right article by paying attention to the noun ending:
unAS tareAS
unOS librOS