It depends, what is on the list? If "playing, dancing, or singing " is on there than here you go:
-Angel and Lupita are playing.
-Angel and Lupita are dancing.
-Angel and Lupita are singing.
Answer:
you can use it when you need to say things like
Un: Un gato - a cat
unos: unos gatos- some/male cats
unas: unas gatos- some female cata
una: una gato- a female cat
The second option makes the most sense.
Answer:
recheck your typing. incorrect
Answer:
this is only the translation but its What happened yesteraday
Explanation: