These English tongue twisters will help students practice long vowel sound U (like in you):
A Tudor who tooted a flute
Tried to tutor two tooters to toot.
Said the two to their tutor,
"Is it harder to toot
or to tutor two tooters to toot?"
You know New York.
You need New York.
You know you need unique New York.
Unique New York, unique New York, unique New York ...