In choice A
,but, if used continuously for long periods, can cause users to develop tolerance and even addiction
Isn't that wrong?
comma and 'but' should be followed by independent clause but I don't see the subject there.
,but, if used continuously for long periods, can cause users to develop tolerance and even addiction
Isn't that wrong?
comma and 'but' should be followed by independent clause but I don't see the subject there.
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