The recent surge in the number of airplane flights has clogged the nation's air-traffic control system, to lead to 55 percent more delays at airports, and prompts fears among some officials that safety is being compromised.
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Ato lead to 55 percent more delays at airports, and prompts
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Bleading to 55 percent more delay at airports and prompting
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Cto lead to a 55 percent increase in delay at airports and prompt
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Dto lead to an increase of 55 percent in delays at airports, and prompted
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Eleading to a 55 percent increase in delays at airports and prompting
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