how to write it?? the exam is hard so you must study
or
the exam is hard, so you must study
or
the exam is hard so, you must study.
I am really sorry for noobish question T T .I want to explain about cause and effect by that sentence. Please give suggestion or advice if you have another expression/word to do it. Thank you very much.
Top answer
The exam is hard , so you must study. 'So' is a coordinating conjunction like and, or and but, so it is preceded by a comma.
— Mister Micawber
The exam is hard , so you must study.
'So' is a coordinating conjunction like and, or and but, so it is preceded by a comma.
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