Question
In each sentence, a part is given in bold. Choose the
best alternative. If no improvement is required, choose (E). The success of long-term policies depends on how effectively governments adapt to changing economic conditions.Solution
Original sentence: “adapt to changing economic conditions” This is already: grammatically correct proper preposition usage Check options: A/B/D → wrong prepositions C → breaks structure after “depends on how effectively” Thus, No improvement required (E) is correct.
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