Please photocopy this page OR paper

[Untaught]

My respected teachers

1: ''Write it on your phone and save it.'' OR ''Write it in your phone and save it.''?

2: ''I'm at someone's home.'' OR ''I'm at someone else's home.'' ?

3: ''I'll download this game to your phone.'' OR ''I'll download this game in your phone.'' ?

4: ''Please photocopy this page OR paper.''?

5: ''I am going to get this page OR paper photocopied.''?

Thanks a million!

[Milanya]

1: ''Write it on your phone and save it.'' OR ''Write it in your phone and save it.''? Are you going to write in on your your phone with a marker?
use just "Save it to your phone."

2: ''I'm at someone's home.'' OR ''I'm at someone else's home.'' ?

I am at my friend's home. I an at John's home. I am not at home at the moment, I am at John's.

3: ''I'll download this game to your phone.'' OR ''I'll download this game in your phone.'' ? to your phone

4: ''Please photocopy this page OR paper.''? Depends on CONTEXT. A paper (an article) may consist of several pages.

5: ''I am going to get this page OR paper photocopied.''? Depends on context. A paper (an article) may consist of several pages.

Thanks a million![/quote]
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con·text - The part of a text or statement that surrounds a particular word or passage and determines its meaning.