... dong.altogether , please 15 ,400 dong 17 ,600 dong 11 ,500 dong 3,000 dong.9,500 dong.25,000 dongUnit 8: Lesson 3: B1 (At the post office)New wordsShark attackUnit 8: Lesson 3: B1 (At the post office)Listen ... newspapersstampsXO XOXOXO XOXOXOXOXO 1 234 5678 9a. Where will Liz mail her letter?She will mail her letter to the USA.She pays 11 ,500 dongaltogether.c. How much does Liz ... altogether?She pays 11 ,500 dong altogether.b. How much are the envelopes?They are 2,000 dong.e. How much change does she receive?She receives 3,500 dong change.d. Does she give the clerk 15 ,000 dong?...