Final answer:
The appropriate adverb for the sentence is 'consequently' because it indicates that the dry lawn is a direct result of the sprinkler system not working. The other options do not logically connect the two ideas. Thus, the choice that best fits the context is 'consequently.'
Explanation:
Choosing the Correct Adverb
In the sentence "The sprinkler system doesn't work; _, the lawn is dry and brown.", the goal is to select the most appropriate adverb that connects the two clauses logically.
Let's analyze each option:
- a for instance: This option suggests giving an example. It doesn't fit because the second clause is not an example but a consequence of the first.
- b on the contrary: This implies a contradiction. It does not apply here, as the second clause confirms the result rather than contradicting the first.
- c however: This indicates contrast, but it doesn't clearly connect the two statements in terms of cause and effect.
- d consequently: This option indicates that the second clause is a result of the first. Since the lawn being dry and brown is a direct consequence of the sprinkler system not working, consequently is the best choice.
Therefore, the correct adverb to use in this context is consequently.
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