progress and development

[puzzle]

A society's progress and development depends on its people's progress and development.
I. Can I omit the black without changing meaning in this case?
II. "its" is optional or totally unnecessary?


The society's progress and development depends on that of its people.
The progress and development of society depends on that of its people.
The sentences' grammar are fine?

Please.

[RonBee]

Perhaps:

A society's progress and development depends on the progress and development of its people.

(The word grammar can normally be used only in the singular.)

[puzzle]

RonBeeRe: progress and development
Perhaps:

A society's progress and development depends on the progress and development of its people.

I.Can I replace "depends on the progress and development of its people" with "depends on that of its people" ?

II. Can "its" be omitted in this case?

Please.

[RonBee]

RonBeeRe: progress and development

Perhaps:

A society's progress and development depends on the progress and development of its people.

I.Can I replace "depends on the progress and development of its people" with "depends on that of its people" ?

II. Can "its" be omitted in this case?

Please.

I suppose.

[Dawood Usmani]

A society's progress and development depends on its people's progress and development.
I. Can I omit the black without changing meaning in this case?
II. "its" is optional or totally unnecessary?


The society's progress and development depends on that of its people.
The progress and development of society depends on that of its people.
The sentences' grammar are fine?

Please.

The progress and development of a society depends on its people.
The progress and development of a society depends on that of its people.
Hope this helps a bit!
Dawood

[puzzle]

I'm not sure for "that" used in this way. You think it's ok, but not good, right?

[bhaisahab]

I'm not sure for "that" used in this way. You think it's ok, but not good, right?

It is absolutely correct,


The progress and development of a society depends on that of its people.

"that"= the progress and developement.

[puzzle]

How about these:

A society's progress and development depends on its people's.
Or,
A society's progress and development depends on that of its people.

[Dawood Usmani]

How about these:

A society's progress and development depends on its people's.
Or,
A society's progress and development depends on that of its people.

We normally avoid genitive case with inanimate things. Of phrase is better. Your sentences are not grammatically incorrect though. But they are not a better choice, to me.
Regards!
Dawood

[puzzle]

Thanks!