Complete the sentences with a definite article (the),an indefinite article (a/an) or zero article rivers of the world the mekong river,( largest river ,has its origins in tibet.( two thousand kilometers of ( is in chinese territory.it then flows 2,400 km through myanmar,laos,thailand and cambodia before entering ( south china sea through ( huge delta in southern vietnam sometimes called "the nine-tailed dragon".this area is known as ( mekong basin.hardly anywhere in (8) world do more people depend on (9) single river than in this region.fifty million people live here and more than 80% of these are directly dependent on (10) river through ( fisheries and (
