Phrase pattern
Who → does what → to whom
The core of a sentence: subject, verb, object. The order is the same as in English
who+does what+whom or what
The student chooses a phone
The daughter sees Uncle
Uncle sells prawns
Practice with this pattern changes the words each time. They come from the words you're learning.
Kai says
Vowel length can distinguish Thai words. Hold a long vowel longer rather than making it louder; volume and length are different things.