1. What are vowels?, A) Sounds produced with a complete obstruction of the airflow, B) Sounds produced without significant obstruction of the airflow, C) Sounds produced only with the lips, D) Sounds produced only with the tongue, 2. Which organs mainly determine the quality of vowels?, A) Tongue and lips, B) Teeth and nose, C) Vocal cords only, D) Jaw and ears, 3. According to the position of the tongue, vowels are classified into:, A) Long and short, B) Voiced and voiceless, C) Front, central, and back, D) Strong and weak, 4. Which vowel is a front vowel?, A) /i:/, B) /u:/, C) /ɔ:/, D) /ɑ:/, 5. According to the height of the tongue, vowels are divided into:, A) Close, mid, open, B) High, low, medium only, C) Loud and soft, D) Hard and weak, 6. What are rounded vowels?, A) Vowels pronounced with spread lips, B) Vowels pronounced with rounded lips, C) Vowels pronounced without lip movement, D) Vowels pronounced with closed mouth, 7. Which of the following is a rounded vowel in English?, A) /i:/, B) /e/, C) /u:/, D) /æ/, 8. According to the length, vowels are classified into:, A) Strong and weak, B) Long and short, C) Front and back, D) Hard and soft, 9. A vowel consisting of one element is called:, A) Diphthong, B) Triphthong, C) Monophthong, D) Consonant, 10. A diphthong is:, A) A vowel with three elements, B) A combination of two vowel sounds pronounced in one syllable, C) A very long vowel, D) A consonant sound

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