sắp xếp:1,a/send/how/cost/to/does/oversea/it/much/abroad/letter? 2,a/letter/how/is/much/USA/the/to? 3,total/the goods/mother/what/cost/your/is/of/buys/the? 4,cost/local letter/does/Vietnam/how/it/to mail/a/in/much? 5,needs/a phone card/thousand dong/post office/fifty/the/Nhung/to/buy/at. 6,those/you/buy/are/souvernirs/want/the/to? 7,ahead/take/street/the right/staight/and/the/second/on/go. 8,you/thank/birthday/very/for/much/present/your. 9,the girls/most/of/in/enjoy/recess/catch/rope/my/skipping/class/and/playing. "Giup to nhe cac bạn "