How to practice: This set collects only the Read & Complete 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.
Passage 1
International climate agreements have attempted to obli___… national governments to adopt measurable emission targets. However, critics point out that enforcement mechanisms remain inade___…, leaving compliance largely voluntary.
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1) oblige · 2) inadequate
Passage 2
The concept of environmental sustain___… holds that economic development should not come at the cost of irreversible damage to natural systems. Advocates argue that future generations have a right to inher___… the same ecological resources that exist today.
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1) sustainability · 2) inherit
Passage 3
Plastic waste has become one of the most perva___… environmental issues of the twenty-first century, with millions of tonnes entering the ocean each year. Policymakers are exploring both regulatory and market-based approaches to addre___… this crisis.
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1) pervasive · 2) address
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