Correct the following sentences.

This sentence requires correction based on the principle of subject-verb agreement.

The main subject of the sentence is "The basket," which is a singular noun. The phrase "containing ten apples" is a participial phrase acting as an adjective, modifying "basket." It does not alter the number (singularity or plurality) of the main subject.

Since the subject "basket" is singular, the verb must also be singular. The original sentence used "were," which is a plural verb. It should be replaced with the singular past tense verb "was" to agree with the singular subject.

None of us are perfect. = None of us is perfect.

To They came to meet my friend and I. = They came to meet my friend and me

It is I who am to blame.

This sentence illustrates a crucial rule of subject-verb agreement, particularly with relative pronouns. Here's a breakdown:

    
• The phrase "It is I" establishes the subject.
    
• "Who" is a relative pronoun that refers back to its antecedent, which in this case is "I".
    
• According to the rule of subject-verb agreement, the verb in the relative clause (the clause introduced by "who") must agree with its antecedent.
    
• Since the antecedent is "I", the verb should be "am" (first person singular), not "is" (third person singular).
    
• Therefore, the correct form is "It is I who am to blame."
    
• This rule ensures that the verb properly matches the person and number of the noun or pronoun it refers to, even when separated by a relative pronoun.