1. Listen to the following sounds first, then repeat each sound until you are able to
distinguish different tones.
ơ ớ ờ ở ỡ ợ

2) Now, practice adding consonant v with ơ and different tones.
vơ (to grab) ; vớ (socks); vờ (to pretend); vở (notebook); vỡ (broken);vợ (wife)