Use appropriate sentence connectors in the blank spaces of the following passagE-

Bangladesh is a free and sovereign country. (a) _____ it was a part of Pakistan from 1947 to 1971. In 1971 it became independent (b) _____ started its journey as a free nation, (c) _____ the journey was not smooth at all. On 7 March, 1971 (d) _____ Bangabandhu delivered his speech, the common mass got united (e) _____ started their preparation for a war. The Pakistani forces started mass killing (f) _____ killed about 30 lakh innocent peoplE- They thought (g) _____ they could suppress the Bangalees within a few days. (h) _____ the brave sons of our land proved them wrong.(i) _____ the freedom fighters didn’t have modern weapons in their hand, they were the real patriots and courageous. (j) _____, after few months they became successful in their mission. (k) _____ the long waited date came (l) _____ the Bangalees got their victory on 16 December, 1971. (m) _____ we are the citizens of a free land (n) _____ marching forward to the way of lasting development very quickly.