（）hard they worked，they couldn’t satisfy the boss．

My son has done considerable（）to his car and we just got tyres on it in Dec.，but due to his front end being totally screwed up，both the front tyres have already worn out．

A.ruin
B.destruction
C.damage
D.injury

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Hundreds of American soldiers lost their lives and thousands of them（）in different parts of Iraq．

A.injured
B.were injured
C.were injuries
D.were the injury

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