Question

All of the CDs, even the scratched one, (is, are) in this case. This is a Subject verb agreement question

Answer 1

All of the CDs, even the scratched one, are in this case.

• The correct helping verb to be used in the given blank is ''are''

Subject-Verb Agreement:

• In ''subject-verb'' agreement, subjects and verbs must agree with one another.
• If the subject is singular then the verb is also singular whereas if the subject is plural then the verb is also plural.
• In the above-mentioned sentence, the subject ''All of the CDs" is plural so use the plural verb "are".

Hence, the required helping verb in the given blank is "are"