Question

Fill in the blank with a suitable adverb clause:
We will leave from here _________________.

• A. after sunset
• B. you will stay here
• C. as soon as it stops raining
• D. tonight

Answer 1

The correct option is C as soon as it stops raining

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 C is correct because it is an adverb clause of time, "as soon as" is a pair of conjunctions that refers to time, "it" is the subject and "stops" is the verb.
Option A is incorrect because it is a phrase.
Option B is incorrect because it is a coordinate clause and has no conjunction that can join the given sentence with the option.
Option D is incorrect because it is only a word.