Explanation

Pronouns that point to specific things: this, that, these, and those, as in “This is an apple,” “Those are boys,” or “Take these to the clerk.”

These is used as demonstrative pronoun 

Explanation

Pronoun is a word which is used in place of a noun.

Pronoun means اسم ضمیر

Explanation

A poor man whom I knew nursed the orphan means وہ غریب جس کو میں جانتا تھا اس نے یتیم کی دیکھ بھال کی تھی۔

Explanation

let be is used as Leave undisturbed, refrain from interfering with. 

Explanation

We use which in relative clauses to refer to animals and to things

Explanation

Neither of them will refute the charges.

This is a double negative, which implies that both will refute the charges.

But in standard usage, it's better to avoid double negatives.

So, the sentence should ideally be:

Explanation

Either of the two pencils will do it must be black in color and its length must be shorter.

Either is a pronoun here.

Explanation

Any is used for more than two while either is used for two.

Explanation

Everybody, everything, nobody, nothing, somebody, something anybody, anything are the examples of pronoun.

These pronouns considered as singular.

These pronouns are used for people and things.

Explanation

None gives negative sense.

Neither is used for two.