Matching Pairs Vocabulary Challenge: Article UnderstandingOnline version Match the words and phrases with their definitions to enhance your comprehension of the article. by marco rabadan 1 limber 2 to alternate 3 lap 4 doomed 5 clearance 6 to wreak havoc 7 sturdy one circuit of a track or racetrack capable of moving, bending, or contorting easily likely to have an unfortunate and inescapable outcome clear space allowed for a thing to move past to interchange regularly or in succession strong enough to withstand rough work or treatment to cause a large amount of damage or harm