Personal pronoun, ossessive adjective and abbreviation and acronym

Dear Teacher,
I do understand all your explanation about personal pronoun ,possessive adjective and abbreviation & acronym.
I’ll do the below exercises .
I go to visit my family at a countryside.
She places her car at my disposal of all day.
She has a Camary car ,its colour is red.
They live in Phnom Penh city, their house next to mine.
Cambodia in southeast asia,its capital is Phnom Penh.

Abbreviation is a short form of any word ,it likes Adjective becomes Adj.
preposition becomes Pre.

Acronym is an initial letter to be taken out of each of words and put together into a word. For example:
WHO is acronymed from World Health Orgonization.
UNICEF is acronymed from United Nation International Children Emergency Fund.
Please do correct my understand.
Thanks
Savath

I’ll do the exercises below .
I go to visit my family in the countryside.
She places her car at my disposal for the whole day.
She has a Camary car. Its colour is red.
They live in Phnom Penh city. Their house is next to mine.
Cambodia is in South East Asia. Its capital is Phnom Penh.

Abbreviation is a short form of any word ,it likes Adjective becomes Adj.
preposition becomes Pre.

Acronym is an initial letter to be taken out of each of words and put together into a word. For example:
WHO is an acronym from World Health OrgAnization.
UNICEF is an acronym from United Nation International Children Emergency Fund.
Please do correct my misunderstandings.
Thanks
Savath
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Dear Kitosdad,
I very appriciate for your correcting my exercises.It gets me sense of using English structures in the right way.
I’m lucky that I have learned English with the English spoken native teacher,unfortunately I don’t have the webcam to record my voice message to be posted to you for your hearing it,but it’s in the Internet shop ,however I can’t record it because a noise to be made by somebody comes to play games.
I hope next time I will do it for you.
Thanks
Savath