Hi!
People on bikes must wear a helmet. Why isn't this sentence "People on bikes must wear helmets"? I mean, the front part of the sentence is in the plural. Shouldn't we use the plural form in the latter part either?
People on bikes must wear a helmet. Why isn't this sentence "People on bikes must wear helmets"? I mean, the front part of the sentence is in the plural. Shouldn't we use the plural form in the latter part either?