Select the most appropriate option to substitute the highlighted segment in the given sentence. If there is no need to substitute it, select ‘No substitution required’.
Our microwave oven is out of order and repairing is needed for it.

Correct option is C

The correct substitution for the highlighted segment "repairing is needed for it" is needs to be repaired.
The sentence indicates a requirement for an action to be performed on the microwave oven, hence "needs to be repaired" is grammatically correct.
The phrase "needs to be repaired" is the correct passive construction to indicate that the microwave oven requires repair.
Grammatical Rule Used: The verb "needs" followed by the infinitive "to be" and the past participle "repaired" correctly conveys the necessity of the action.
Corrected Sentence: Our microwave oven is out of order and needs to be repaired.
Example:
· The car needs to be washed before we can go on the trip.