All of the itens fit into the same category EXCEPT: 
“Weights and Measures laws in the US represent approximately 50 percent…” APPROXIMATELY is closest in meaning to 
Choose the item which is a measure: 
In “Here’s $100 to make sure” MAKE SURE is closest in meaning to: 
According to the previous text, judge the following items.
The word ‘changing’ (l.13) conveys the idea that threats are constantly evolving.
Among the many tasks, mentioned in the third paragraph, a police officer may perform in the line of duty, is to “secure evidence”. The phrase means, in Portuguese, the same as 
No trecho do último parágrafo – Police officers must be available for shift work at any time of day and any day of the week, including holidays. –, a palavra em destaque transmite a ideia de 
Judge the following items according to the text.
In the sentence “Sleeping in class declined, as did self-reported depression” (l.35 and 36), the word “as” indicates that depression also declined.
According to the text, judge the following items.
The adjective “non-living” (l.6) is synonymous with unliving.
Judge if the translation suggested in each of the following items is grammatically correct and maintains the meaning of the original text.
“They also embarrassed the intelligence community and initiated an international discussion on the boundaries of surveillance in this age of instant communication” (l.15 to 18) = Eles também envergonharam a comunidade ligada aos serviços de inteligência e deram início a uma discussão internacional sobre os limites da vigilância nesta era de comunicação instantânea.