I have the “problem” with singular and plural nouns. As you know, even my friend doesn’t have any childre. I have to say “He has no children” and not “He has no child.”
1/If I know my composition has only one mistake but I can’t find it. So, I give the teacher my composition. On this composition, can I write: Please fix the mistake?
Or I have to write: Please fix the mistakes?
2/I have 20 answers. I know only one of them is correct but I can’t find it. So, I put these answers in an envelop and give them to my teacher. On the envelop, can I write:
a. Please find the correct answer.
b. What answer is correct?
e. What is correct?
Or I have to write:
a. Please find the correct answers.
b. What answers are correct?
e. What are correct?
Always the problem with singular and plural. Please help me.