Question

Fill in the blank with a suitable adverb clause:
You can eat .

• A. plenty of food here
• B. as much as you want
• C. as long than you want
• D. None of the above

Answer 1

Answer: (B)

as much as you want

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 comparison; 'as...as' is a pair of conjunctions that refers to comparison (of manner, 'much').
Option A is incorrect because it is a phrase, not a clause.
Option C is incorrect because it is an adverb clause of time and not comparison.
Option D is incorrect because the answer lies in B.