The difference is that quinceañera is when you get to the age of 15 and sweet 16 is when you get 16 years old
Cuando lo que? whats the question?
Ella te lo da
This is because Ella's giving it (male) to you (tu/ti)
O=yo imos=nosotros
es=tú ís=vosotros
e=el/ella/usted en=ustedes/ellos/ellas
