Updated 2026-08-28medium

Duolingo English Test Listening Cloze Practice #6 — Medium Level

Free DET (Duolingo English Test) Listening Cloze practice #6 — Medium level. Just DET Listening questions, no grading — solve it yourself and check the answer or model response.

How to practice: This set collects only the Listening Cloze question type from the real DET (Duolingo English Test) — DET Listening questions. No grading, no timer — solve it yourself, then tap each question to reveal the answer or model response.
Listening Cloze
Listen to the talk and fill in the blanks below.

A megacity is a city with a _____ of more than ten million people. Today, there are more than thirty megacities in the world, and this number is expected to grow _____ over the coming decades. The rise of megacities is closely linked to global economic development and the movement of people from rural to urban areas in search of better _____. Infrastructure systems — including transportation, water supply, and waste management — are often pushed to their _____.

Show Answers
1) population · 2) significantly · 3) opportunities · 4) limits
Q1 · Comprehension
What is the main topic of this lecture?
  1. A. The economic history of Tokyo and São Paulo.
  2. B. The growth, challenges, and future of megacities.
  3. C. How governments should reduce urban populations.
  4. D. The environmental impact of rural depopulation.
Show Answer
Correct: The growth, challenges, and future of megacities.
Q2 · Comprehension
How is the number of megacities in the world expected to change in the future?
  1. A. It will stay the same.
  2. B. It will decrease as people move back to rural areas.
  3. C. It will grow significantly.
  4. D. It will be limited by international agreements.
Show Answer
Correct: It will grow significantly.
Q3 · Comprehension
According to the lecture, what is closely linked to the rise of megacities?
  1. A. Decreasing global birth rates.
  2. B. Global economic development and rural-to-urban migration.
  3. C. International immigration policies.
  4. D. The expansion of digital technology.
Show Answer
Correct: Global economic development and rural-to-urban migration.
Q4 · Comprehension
What does the lecture suggest happens when rapid urban growth occurs without adequate planning?
  1. A. Cities become more innovative and competitive.
  2. B. Infrastructure improves automatically over time.
  3. C. It leads to inequality, environmental degradation, and social instability.
  4. D. Populations eventually redistribute back to rural areas.
Show Answer
Correct: It leads to inequality, environmental degradation, and social instability.
Q5 · Comprehension
Which of the following is NOT mentioned as part of a city's infrastructure in the lecture?
  1. A. Transportation.
  2. B. Water supply.
  3. C. Waste management.
  4. D. Digital telecommunications.
Show Answer
Correct: Digital telecommunications.
Summary
Show Model Summary
This lecture explains that megacities — cities with over ten million people — are growing in number worldwide, driven by economic development and rural-to-urban migration. While they generate significant economic activity, they also face severe infrastructure and governance challenges, and rapid unplanned growth leads to inequality and environmental problems.

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