still confusing

[Anonymous]

Teacher Tdol, you told me that I could add "all" in this sentence to indicate "one person/many letters", but I don't know where in this sentence I can put "all" in, Could you put "all" in this sentence for me please?


How many people can say that their letter was quoted on air?

[Tdol]

How many people can say that all their letters were quoted on air? (Many people many letters)
How many people can say that all their letter was quoted on air? (many people each with one letter, where the policy is not reading all of a letter)

Does that help?