Select the most appropriate option to improve the highlighted segment in the given sentence. If there is no need to improve it, select ‘no improvement required’.
You can have a comfortable journey only then you are getting your seats reserved in advance.

Correct option is D

The correct substitution is (d) only if you get.
Explanation:
· The phrase "only then" is used for consequences, not conditions.
· The sentence is conditional in nature, so we need to use “only if” to show the condition for a comfortable journey.
· “You are getting” is grammatically awkward here; correct form is “you get” (simple present for real conditions).
Correct Sentence:
You can have a comfortable journey only if you get your seats reserved in advance.
Grammatical Rule Used:
✔ Real condition → use simple present in the “if-clause”
✔ Use only if for emphasizing a condition.
�� Grammar Booster:
Conditional sentences (Type 1) →
If/Only if + present tense, main clause → will/can/may + base verb