Many events of great importance (a) — (take) place during the last century. Significant advances (b) — (make) in the field of science and technology. Many European colonies (c) (gain) independence. The movement for democracy (d) — (become) prominent in many parts of the world. Two World Wars (e) — (break) out in this century. It also (f) — (witness) the misuse of atomic energy. Two cities of Japan were completely (g) (destroy) as a result of the dropping of atom bombs. However, the emergence of Bangladesh as an independent nation (h) — (become) a momentous event. After a bloody war of nine months Bangladesh (i) — (bear). Now we (hold) our heads high in the community of nations.