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Questões por página:
Due to” in “due to what the Congonhas' operator said” (2nd paragraph) means 
The opposite of “earlier” (2nd paragraph) is 
In the title, the word “resume” means that flights have been 
In the sentence “While air traffic controllers undergo rigorous training, human error remains a significant risk factor.” (5th paragraph), it is implied that humans are 
The phrase “aging equipment” (3rd paragraph) qualifies equipment that is becoming