Class 10 nepali book unit 1 exercise July 8, 2019 16 32 64 128 Axik nepali class 11 Class 10 ko nepali book ko unit 10 Class 10 nepali book chapter 7 exercise Class 10 nepali unit 10 all exercise स्थानीयकरणभन्दा विश्वव्यापीकरण बेस shikshya phadsala