Fill in the blanks with suitable prepositions, articles and zero articles.

 Bangladesh is a free land but she is beset (a) ----- many problems. The use of poly bags is very dreadful. Recently it has become (b) ------ great threat (c) ----- our environment (d) ----- used poly bags block the drainage system As a result, the low-lying areas (e) ---- the towns and the cities go under (f) ------ dirty water when it rains heavily.The used poly bags also destroy (g) ----- fertility of our soil. Our government has already banned the production (h)poly bags. Yet some greedy and (i) ---- dishonest businessmen are the bags (j) ---- their own interest.