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1. We need the plural "fitness machines" to talk about fitness machines in general. We use the plural form in generalizations. We don't need to capitalize the common noun "fitness".
2. We need the plural "magazines" to talk about magazines in general.
3. We need "and" before the last item in the list.
4. We need the plural "gyms" to talk about gyms in general. We don't need to capitalize the common noun "gyms".

1. A comma is required after the introductory phrase 'yes'.
2. The first word of a sentence must be capitalized.
3. "conduct training gym" is unclear. Consider rephrasing it. Perhaps "conduct training at gyms" would convey what you intended to express.
4. We need the conjunction "and" to connect the two parts of the sentence.
5. We need the plural "magazines " to talk about magazines in general. We use the plural form in generalizations.
6. The preposition 'about' is required here. "About" means "on the topic; on the subject".
7. "Stuff" is an uncountable noun, so we do not need to pluralize it.

1. A comma is required after the introductory phrase 'yes'.
2. We need a determiner to define the noun "books". We could use "our".
3. The sentence doesn't end here, so we need the comma.
4. We use the definite article "the" in front of a noun when we believe the listener/reader knows exactly which specific noun we are referring to. You're referring to a specific noun, specific 'department', so we need the definite article 'the' here.
5. The sentence doesn't end here, so we need the comma.
6. "From" is not required with the adverb "overseas".

1. "something" doesn't fit here. "Something" is not a determiner and should not be used before nouns.
2. Proper spelling of the word 'training '.
3. We need the plural "training machines" to talk about training machines in general. We use the plural form in generalizations.
4. "Do" is not required here.
5. "and update information" may be unclear in this context. Perhaps "to get updated information" would convey what you intended to express.

1. 'Everyday' is an adjective we use to describe something that’s seen or used every day. It means “ordinary” or “typical.” (Eating breakfast is my everyday routine). 'Every day' is a phrase that simply means “each day.” (I eat breakfast every day). In your case we need 'every day'.
2. The same as correction number 1. We don't need to capitalize it.
3. A comma is required after the introductory phrase 'actually'.
4. We need the past participle "transferred" with "got" to form the passive voice.
5. The wording "in eary of this month" is not usually used. Perhaps "early this month" would convey what you intended to express.
6. Proper spelling of the word 'best'.
7. "about" is not required here. We study a subject/language.
8. The wording "It is very tough. and difficult my job." is not usually used and "difficult" and "tough" have the same meaning here, so we only need "very tough" or "very difficult". We could use "my job is very tough".