Visit your local post office. write a letter to your teacher in spanish about your visit.

review the standard letter writing forms in spanish: writing letters in spanish.
make sure the saludos and despedidas are correct.

tell your teacher at least three things you did during your post office visit in the preterite tense. at least three of your verbs should be from the list of irregular preterite verbs we studied in this section.

VocabularioEn inglés El buzónThe mailbox La cartaThe letter El correoThe post office, the mail La direcciónThe address La estampillaThe stamp mandarTo send El selloThe stamp El sobreThe envelope La tarjeta postalThe post card. 

La señora Landrum, Buenos tardes senora landrum Fui a de correos para enviar una tarjeta postal y una carta a mi amigo. Las puse en un sobre, poner la dirección y luego los sellos también, entonces lo envié por correo. Adios, senora Landrum

Bolsa can be referring  to any type of bag,

I’m just going to answer this question for the sake of it. the population of china is approximately 1.43 billion