Can stand by itself as a simple predicate of a sentence

b is the answer.   i sat on the lumpy sofa, totally exhausted, with a bad taste in my mouth, wondering what i should do next.  

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read the sentence. select the words that best complete the two blanks.

though the road they took was long and they continued to plod

answer: a. listless, and steadily

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1) correct answer: general clinton hoped that general burgoyne could him.

2. correct answer: “when they heard box 342 rung, however, they assumed the fire was out of their territory and unhitched the horses. only two fire companies were not fooled by the misleading alarm.”

3.) correct answer: generals were able to send secret messages to each other using a mask.