中国大学MOOC:"In the following groups of vowels, are mid vowels.";
举一反三
- 中国大学MOOC:" In the following groups of vowels, are not all front vowels.";
- 中国大学MOOC: In the following vowels, are back vowels.
- In the following groups of vowels, are not all front vowels. A: /ɜ:/, /ɪ/, /e/ B: /ɪ/, /ʌ/, /ʊ/ C: /u:/, /i:/ /ɜ:/ D: /e/, /æ/, /ʌ/
- 中国大学MOOC: Pure vowels can be classified into three categories: front vowels, central vowels and back vowels. The two vowels/ɜː/ and /ə/ are classified into ______ vowels because they are made with the middle part of the tongue being raised.
- 中国大学MOOC: Which of the following are vowels?