By or With 
By or Until 
all, most, some, none 
many, much 
am, is, are 
was, were ⚠ Report Question ✓ Question Verified
Q: Select the correct preposition to complete the sentence: "He's studying _____ medicine at the university."
as, an, for
Learn More MCQ Questions from English Grammar as, an, for
as, an, for
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Learn More MCQ Questions from English Grammar as, an, for
as, an, for