Which words in the sentence are the adverb clause? . wait with your friend near the front of the store while i finish grocery shopping.

An adverb clause consists of words, which also has a subject and a verb, that functions as an adverb, that modifies an adjective, verb and an adverb. This clause is usually introduced by subordinating conjunctions such as if, although, because, while, such as and after. The words in the sentence that consists the adverb clause are, "while I finish grocery shopping". 

Number 2 the key is a bleak reminder

Aclaim that includes a true statement