This is a peom I made " Have I said I loved you.
Coz you are the only one for me,
Wherever I go ,
It's your pretty face I can see,
Have I said I loved you?
I think I do more than me,
Till the end of the Universe
To the depths of the see,
I love you so much !

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where is the chart

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in the following paragraph, the fourth sentence the correct answer is: three personal subject pronouns

”she was embarrassed when she found that they had been put back on the shelves…”

a   subject pronoun is a personal pronoun. i, you, he, she it, we, they.  

in the sentence it can be observed she, used twice and they used once. is for this reason that is a three personal subject pronoun sentence.