Es una.
Es la una.
Son la una.
Son las una.
which is most correct?

Which of the following is not true of christmas in spain? select one: a. christmas decorations are up until january. b. new years day is spent with family. c. there is hardly anyone at the stores in january. d. if you get the toy in your slice you'll have luck for a year.

Unas son redondas (round), otras ovaladas (oval), unas piensan mucho, otras casi nada. ¿qué es? uno larguito, dos más bajitos, otro chico (small) y flaco (skinny), y otro gordazo (fat). ¿qué son? como la piedra (rock) son duros (hard), para el perro un buen manjar (delicacy) y sin ellos no podrías (you couldn't) ni saltar (to jump) ni caminar. ¿qué parte del cuerpo describe? juntos vienen, juntos van, uno va delante, otro va atrás (behind). ¿qué son?

Mary just sent out invitations to her wedding last week the invitations were so heavy that she put more than just one stamp on each envelope she used 255 stamps and mailed out 85 invitations and see you as an equal amount of stamps on each envelope