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Difference among “per”, “each” and “every”
Difference between “each” and “every”which one is the most correct answer?Do synonyms have exactly the same meanings as each other in all contexts?What are the differences between “seems not” and “doesn't seem”?Difference in the usage? ; It “can / could / must” be something seriousWhat's the difference between “established” and “founded”What's the difference between these two?Is ‘Where did you be born’ ok?“Once each” or “once every” six months?When do we use each of these (in/on/at)?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
Can you tell me which ones are grammatically correct and why?
Students must study for 20 hours per week.
Students must study for 20 hours each week.
Students must study for 20 hours every week.
Students must study 20 hours per week.
Students must study 20 hours each week.
Students must study 20 hours every week.
I am also not sure is it necessary to have "for" after study.
Please help thank you.
differences
New contributor
add a comment |
Can you tell me which ones are grammatically correct and why?
Students must study for 20 hours per week.
Students must study for 20 hours each week.
Students must study for 20 hours every week.
Students must study 20 hours per week.
Students must study 20 hours each week.
Students must study 20 hours every week.
I am also not sure is it necessary to have "for" after study.
Please help thank you.
differences
New contributor
add a comment |
Can you tell me which ones are grammatically correct and why?
Students must study for 20 hours per week.
Students must study for 20 hours each week.
Students must study for 20 hours every week.
Students must study 20 hours per week.
Students must study 20 hours each week.
Students must study 20 hours every week.
I am also not sure is it necessary to have "for" after study.
Please help thank you.
differences
New contributor
Can you tell me which ones are grammatically correct and why?
Students must study for 20 hours per week.
Students must study for 20 hours each week.
Students must study for 20 hours every week.
Students must study 20 hours per week.
Students must study 20 hours each week.
Students must study 20 hours every week.
I am also not sure is it necessary to have "for" after study.
Please help thank you.
differences
differences
New contributor
New contributor
New contributor
asked 1 hour ago
SupphanatSupphanat
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