By or With 
By or Until 
all, most, some, none 
many, much 
am, is, are 
was, were ⚠ Report Question ✓ Question Verified
Q: Which article should be used before a singular noun that starts with a vowel sound?
as, an, for
Learn More MCQ Questions from English Grammar as, an, for
as, an, for
⚠ Report Question ✓ Question Verified
Learn More MCQ Questions from English Grammar as, an, for
as, an, for