Put the words into two groups (/a:/ and /ʌ/)

Cứu tui
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1. Put the words into two groups (/a:/ and /ʌ/)

/a:/
- duck
- study
- fun
- subject
- father
- heart
- art
- carton
- bar
- March

/ʌ/
- number
- husband
- bus
- Sunday
- start
- garden
- young
- double
- smart
- class
- hard