Complete the sentence: It's not necessary ___ a new dress for the dance.

Complete the sentence: It's not necessary ___ a new dress for the dance.

• A. To buy
• B. Buying
• C. To buying
• D. Bought

Answer: (A)

Not necessary + infinitive pattern: after “it’s not necessary,” English normally uses “to” plus the base verb to describe something you don’t need to do. So the natural completion is the infinitive form: “to buy.” It fits the idea that buying a new dress isn’t required for the dance. Using the gerund “buying” would not fit this construction here, giving an ungrammatical phrase like “It’s not necessary buying a new dress.” The form “to buying” is also incorrect because the infinitive should be followed by the base verb, not a gerund. “Bought” is past tense and doesn’t express lack of necessity in this context.

Not necessary + infinitive pattern: after “it’s not necessary,” English normally uses “to” plus the base verb to describe something you don’t need to do. So the natural completion is the infinitive form: “to buy.” It fits the idea that buying a new dress isn’t required for the dance.

Using the gerund “buying” would not fit this construction here, giving an ungrammatical phrase like “It’s not necessary buying a new dress.” The form “to buying” is also incorrect because the infinitive should be followed by the base verb, not a gerund. “Bought” is past tense and doesn’t express lack of necessity in this context.