Topics

Duolingo English Test

2026 DET Introduction

• Reading

• Listening

• Writing

• Speaking

• Sample Writing/Speaking

TOEFL

TOEFL Mock Tests/Solutions

• 2026 TOEFL Test format

• Reading  #20  #5

• Listening  #20  #2

• Writing  #20  #7

• Speaking  #20  #19  #4

• Mock Reading Set 8 Solutions

• Mock Speaking Set 9 Solutions

TOEFL Writing

• 2026 TOEFL Writing: Your Guide to 5+

• Sentence building: Word order flowchart for interrogative sentences

• Sentence building: ETS #1

• Sentence building: ETS #2

• Sentence building: ETS #3

• Sentence building: ETS #4

• Sentence building: ETS #5

• Sentence building: ETS #6

• Sentence building: ETS #7

• Sentence building: Noun clauses used in indirect questions

• Sentence building: Word order for negative sentences

• Sentence building: Why Wh- Words Don't Always Go to the Front: The "Know" vs. "Think" Rule

• Sentence building: Indirect questions with How Many and How Much 

• Email: Challenging Official ETS prompt: Write an email to the digital marketing presenter

• Email: Student email feedback

• Email: The Exact Tone You Need for Criticizing and Giving Advice

• Email: the Right Tone: How to Demand Your Rights Without Sounding Desperate or Aggressive

 

• How ETS rates your Academic discussion Response

• Academic discussion: How to organize your response: Moving Beyond "In-Your-Face" Templates

• Stop copying bad templates

• Academic Discussion: Disagreement templates and effort-based grades

• Academic discussion: ETS Sample responses

• Academic discussion: Mandatory volunteering

• Academic discussion: Free public transportation

• Academic Discussion: Sample Responses on Public Policy Questions

• Academic Discussion: University courses required for general education

• Academic Discussion: Is tourism promotion to remote places good or bad?

• Academic Discussion: How to write agree/disagree responses Topic on Shorter work hours in the future

• Academic discussion: Essay Feedback on Investing on Current Employees

• Academic discussion Essay feedback on Mental health

• Academic Discussion: Essay feedback on how to utilize urban spaces (organization question)

• Academic Discussion Essay Feedback: Is Technology Overall Positive for Society?

• Academic discussion: Essay feedback: Is seniority rule fair

• Academic discussion: Why Many TOEFL Academic Discussion Response Templates Are Bad: Use Them and Lose Scores! 

• Academic discussion Mistake: Agreeing With Both Students Makes Your Writing Inconsistent: Essay topic on Celebrities Sharing their Politics

• Grammar for writing: Subject verb agreement in number

• Grammar for writing:  How a Simple Article ("The") Fixes the Repetition Problem

• Grammar for writing: Use Participle Phrases for Advanced Sentences and Improved Sentence Variety Scores

• Grammar for writing: Run-ons and sentence fragments

• Comma Rules

TOEFL Speaking

• 2026 TOEFL Speaking: Strategies to score 5 and beyond

• 2026 TOEFL Speaking: ETS Sample Responses Analysis (Lecture Notes)

• Listen and Repeat: Practicing Connected speech for fluency

• Listen and repeat: Stress compound words correctly  

• Listen and repeat: Rhythm practice

• Listen and repeat: Memory tips or How to remember words better

• Listen and repeat: Practice with official ETS sample audio 

• Interview: Questions on successful government

• Interview: How to structure your interview response 

• Interview: question “Is the process more important than the result”

• How ETS rates your Interview responses (scored ETS sample responses)

• Interview questions: Coming up with Ideas

• Pausing rules for fluency

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TOEFL Listening

• 2026 TOEFL Listening Strategies for a 5.5 score

• Best response task

• Academic talk on Endotherms vs Ectotherms

• Academic lectures on Bode's Law and Pyramid Construction

• Academic Lecture: Master 7 Question Types for Better Problem-Solving

• Academic lectures on Permian Extinction and Gas Giants

• ETS Sample Listening Test

• Listening and answering strategies for academic lectures

• Academic lectures on scientific theories

TOEFL Reading

• 2026 TOEFL Reading: Strategies for Score 5 and Beyond

• Fill in missing letters: strategy

• Fill in missing letters Tips and tricks

• Fill in missing letters: Two step strategies(ETS Set #6)

• Fill in Missing letters Practice on Climate change

• Fill in missing letters Practice on Solar energy

• TOEFL Vocabulary A words

• TOEFL Vocab Hack: AB, AD prefixes

• TOEFL Vocabulary B-/C- words

• Academic passage: Sentence insertion clue: determiner "other"

• The meanings of semicolon, colon, and dash for TOEFL reading

• TOEFL inference questions that require the use of contrapositive

• Academic passage: Comets

• Sentence insertion: how to 

• Implicit vs explicit information questions

• Reading/answering strategy: Decoy choices

• Inference/rhetorical purpose questions on scientific passages 

• Rhetorical purpose question strategies

• Information/inference question strategies

Pronunciation

• Why you must learn IPA pronunciation

• Standard American English Pronunciation

• 10 pronunciation differences between American and British English

• Vowels: Incorrect vowel classification, IPA vowels, Standard American English vowels
• Vowel diagram:Vowel pairs that can sound the same to nonnative speakers 
• Front high vowel /i/ and /ɪ/ comparison (beach vs bitch; heat vs hit)
• Front low vowel /ɛ/ and /æ/ comparison
• Back high vowel /u/ and /ʊ/ comparison
• Back low vowel /ɔ/ and /ɑ/ comparison
• Middle center vowels: /ʌ/ vs /ə/
• Diphthongs ending with /ɪ/
• Diphthongs ending with /ʊ/ 

• Intro to Consonants: IPA Chart and Place of Articulation
• Manner of Articulation: 6 Methods by Which Air Escapes from the Mouth
• The Hidden Voicing Secret: How -S, -ED, and Vowel Length Are Connected
• Plosives, phonemes and allophones, allophones of plosives
• Bilabial plosives
• Alveolar plosives /t/ and /d/
• Velar plosives /k/ and /g/
• Labiodental fricatives /f/ and /v/
• Interdental fricatives /θ/ and /ð/
• Alveolar fricatives /s/ and /z/
• Palatal fricatives /ʃ/ and /ʒ/
• Glottal fricative /h/
• Affricates /ʧ/ and /ʤ/

Prosody: Stress and Intonation

• Mastering English Rhythm for Natural Speech
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Vocabulary

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Grammar

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