Sắp xếp lại câu không thêm không chia
1, 87% / Viet Nam / the Kinh people / are / population / of
2, there / of / a lack / and / hospitals/ in/ areas/ schools/ some mountainous/ is/ in/ of / viet nam
3, they/ need / in Kom Tum / for / 20 / a boarding school / volunteer teachers