Question 15

Going is the correct choice for the sentence structure.

The sentence "I am looking forward to going on a vacation next month" uses the gerund form "going" after the preposition "to," which is grammatically correct in this context.

A) Go

"Go" is the base form of the verb and does not fit the grammatical structure required after the preposition "to." In this context, the gerund form is necessary to convey the action of looking forward to something.

B) Going

"Going" is the gerund form of the verb, which correctly follows the preposition "to" in this sentence. This form expresses the action of anticipating the vacation and is the appropriate choice.

C) Be go

"Be go" is not a grammatically correct phrase in English. It combines the verb "be" with the base form "go," which does not convey a coherent meaning and fails to fit the sentence structure.

D) Going to go

"Going to go" is a future tense construction but is excessively wordy and redundant in this context. The simpler gerund "going" is more appropriate and accurately reflects the intended meaning without unnecessary complexity.

Conclusion

The correct answer, "going," effectively fits the requirement of the sentence structure following the preposition "to." All other options either misapply grammatical rules or introduce unnecessary complexity, making them unsuitable for this context. Thus, "going" is the only choice that maintains clarity and correctness in expressing the anticipation of the vacation.