Compound subjects- those that joined with " and"- should take singular verbs. The CD player and moon-roof is included in the car's price.
Is it true?
No. Compound subjects joined with 'and' take plural verbs.
Think of it this way: 1+ 1 = 2
No, the statement is not true. Compound subjects that are joined with "and" generally take plural verbs, not singular verbs. In this case, the correct sentence should be: "The CD player and moon-roof are included in the car's price."
To determine whether a singular or plural verb is appropriate in a sentence with compound subjects, you can follow this rule: If the subjects are acting individually or separately, a plural verb is used. However, if the subjects are acting as a single unit or are considered a collective noun, a singular verb is used.
In the example you provided, the CD player and moon-roof are two distinct components of the car, and they are acting individually, so a plural verb "are" is appropriate.