2. Tajikistan has telegraph poles, power lines and a few tea houses while the Afghan side only has mud houses./The Tajik side of the river is far more developed than the Afghan side.
5. (i) b
6. (i) Not Given
7. The roads are very poor/in bad condition/cause a lot of damage to vehicles.
8. It implies that it will be easier/smoother/less arduous than his drive through Tajikistan.