A: How do you like the present, Mom?

B: Oh, it is great. It's so kind of you.

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In the short dialogue above, what is the full form of 'It's so kind of you.'?

It is so kind of you to give me the present. --- Is this the full form for that?

What is term of the English term for "It"?

"It" is a pronoun, but in this type of sentence, it's more of an idiom since there is no one noun to which it refers.

The full form that you wrote is fine.

The full form of "It's so kind of you" could be "It is so kind of you." In this context, "It" refers to the present that was given by the speaker to their mom.

The term for "It" in this context is a pronoun. Pronouns are words that are used in place of nouns to avoid repetition. In this case, "It" is used to refer back to the present that was previously mentioned, instead of repeating the word "present" in the sentence.