Fill in each gap with ONE suitable word

I. Fill in each gap with ONE suitable word.

Viet Nam is in the South- East Asia. It has (1)________of beautiful mountains, rivers and beaches. (2)________are two long (3)________in Viet Nam: the Red River in the north and the Mekong River in the (4)________. The Mekong River is the (5)________river in the South- East Asia and of course it is longer (6)________the Red River. The Mekong River starts in Tibet and flows (7)________ the sea. Phanxipang is the (8)________mountain in Viet Nam. It’s 3,143 meters (9)________. Viet Nam also (10)________a lot of nice beaches such as Sam Son, Do Son, Nha Trang, Vung Tau.