How to practice: This set collects only the Fill in the Blank question type from the real DET (Duolingo English Test) — DET Reading & Vocabulary questions. No grading, no timer — solve it yourself, then tap each question to reveal the answer or model response.
Q1 · Fill in the Blank
Companies that fail to _____ quickly to changing consumer preferences risk losing significant market share to more agile competitors.
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Correct: adapt
Q2 · Fill in the Blank
The board approved a new _____ strategy aimed at entering three emerging markets over the next two years.
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Correct: expansion
Q3 · Fill in the Blank
Analysts predicted that the merger would generate significant _____ by eliminating redundant operational departments.
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Correct: efficiencies
Q4 · Fill in the Blank
Venture capitalists are drawn to startups that demonstrate not only innovation but also a clear path to _____.
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Correct: profitability
Q5 · Fill in the Blank
The report concluded that income _____ within the company was undermining employee morale and productivity.
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Correct: disparity
Q6 · Fill in the Blank
A _____ business model allows a company to scale rapidly without a proportional increase in operational costs.
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Correct: scalable
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