Question

Complete the sentence with a suitable adverb clause:
We have to leave early ______.

• A. to get the best seats
• B. so that we get the best seats
• C. for the concert
• D. None of the above

Answer 1

The correct option is B so that we get the best seats

An adverb clause is a group of words containing a subject and a verb, and it functions as an adverb, by modifying an adjective, verb or an adverb. Adverb clauses generally begin with a subordinate conjunction (since, because, while, etc.).
Option B is correct because it is an adverb clause of purpose, 'so that' is a pair of conjunctions that refers to purpose: "we get the best seats".
Option A is incorrect because it is an infinitive phrase, not an adverb clause.
Option C is incorrect because it is a phrase, not a clause.
Option D is incorrect because the answer lies in B.