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Could you please help me with these sentences?

- I am on board (of) your plane and I will be arriving later than scheduled/planned.
- Try to take up as little/few space as possible.
- Where are you situated./located.
- For safety/security purposes, I'd advise you to change locks.
- Do you know where the store is at about/around? (how would you say that?)
- What's the date today?/Whats today?

- In 2 minutes I'll have another hour to go before I can go home.

- I've been here shorter/less than him and know how to work the system better than him. (how to say?)

Thank you
Comments  
Could you please help me correct these sentences?

Thank you
I'm not an English teacher. This is my opinion:

- I am on board (of) your plane and I will be arriving later than scheduled/planned.
I would perhaps say (depending on the speakers viewpoint):
'I am on board (of) your plane but I will be arriving later than scheduled/planned.'
Either 'scheduled' or'planned' work here I think. Maybe you could say '...than we planned'

- Try to take up as little/few space as possible.
'Little' is the correct word here.

- Where are you situated./located.
Either 'situated'or 'located' is fine.

- For safety/security purposes, I'd advise you to change locks.
Depends if your opinion of locks is for 'safety' or 'security' purposes. You could say both but the word 'security' includes an element of 'safety' in my opinion.

- Do you know where the store is at about/around? (how would you say that?)
I would say 'Do you know where the store is around here?'

- What's the date today?/Whats today?
What's the date today? - This is correct.
Whats today? - Not correct needs more info E.g. 'What's today's date?'

- In 2 minutes I'll have another hour to go before I can go home.
This is correct.

- I've been here shorter/less than him and know how to work the system better than him. (how to say?)
'Less' is the correct word.
You could say:
'I've been here for less time than him and know how to work the system better than him.'

Hope this helps but I would double check my answers with an expert.

Rich
Students: We have free audio pronunciation exercises.
- I am on board (of) your the plane, and but I will be arriving later than scheduled/planned. Both OK. I prefer "scheduled".
- Try to take up as little/few space as possible.
- Where are you situated?/located? Both OK. I prefer "located".
- For safety/security purposes, I'd advise you to change locks. Both OK. I prefer "security".
- Do you know where the store is at about/around? (how would you say that?) As shown.
- What's the date today?/Whats today?
- In 2 minutes I'll have another hour to go before I can go home. OK.

- I've been here shorter/less than him and know how to work the system better than him. (how to say?) Even though I haven't been here as long as he has, I know how to do the job better than he does.

I'm not sure what you mean by "work the system". In English this is an idiom which refers to the use of the rules of a system in a way that benefits you, gaining you an advantage over others, even though it may be slightly illegal or unfair to the others. Are you translating the French "systeme D"? If so, then leave it as "know how to work the system better than he does".

CJ
Thank you CJ

One question regarding the last sentence?

I'm trying to say that X person's job is to work on the computer and work using a program.
I want to know if you can say " He works the program better than you" as in he knows more about it and knows how to use it better than you.

Can you say "he's been here shorter/less than you" or "he's been here for a shorter period/less time than you" how would you say it while keeping the same structure?

Can you use WHILE in the bold sentence and does the sentence make sense please CJ?

Thank you
"What's today?" is okay if you want to know the day of the week. "What's today -- Wednesday?" "No, it's Thursday." (Or, as my Mother would say, "Thursday -- all day.")
Students: Are you brave enough to let our tutors analyse your pronunciation?
alc24... I want to know if you can say " He works the program better than you" as in he knows more about it and knows how to use it better than you.
No. That phrasing isn't right. Say:

He's better at using the [program / system] than you.

I might go for a much less formal statement:

He knows the ins and outs of the system better than you.

But you can also say:

[He is more experienced / He has more experience] with the [program / system] than you.
alc24Can you say "he's been here shorter/less than you" or "he's been here for a shorter period/less time than you" how would you say it while keeping the same structure?
Not shorter/less than you. Say a shorter time or less time.

He's been here for a shorter time than you.
He's been here less time than you.
alc24Can you use WHILE in the bold sentence and does the sentence make sense
Yes. while is fine, but you can leave it out and put in a comma. The sentence is fine. No problems.

How would you say it while keeping the same structure?
How would you say it, keeping the same structure?

CJ