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TOEIC Reading 5 Exercisee 422

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Question: 
O:8:"stdClass":2:{s:8:"question";s:132:"The government has established laws on the maintenance of equipment and the use and storage of hazardous substances to ensure ______";s:7:"choices";a:4:{i:0;s:4:"safe";i:1;s:6:"saving";i:2;s:6:"safety";i:3;s:6:"safely";}}
Answer: 
c
TOEIC Reading 5 Category: 
content access: 
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answer explanation: 

<p>The government has established laws on the maintenance of equipment and the use and storage of hazardous substances to ensure <b>safety</b>.</p>

<p>The correct answer is <b>(C) safety</b>.</p>

<p>In this sentence, the word "ensure" is followed by a noun, so we need to choose a noun form of the adjective to complete the sentence correctly. In this case, the correct noun form is "safety."</p>

<p>The adjective "safe" (option A) cannot be used here because it is an adjective, not a noun. The word "saving" (option B) is a gerund form of the verb "save" and does not fit grammatically in this context. The adverb "safely" (option D) also does not fit grammatically because it modifies verbs or adjectives, not nouns.</p>