After the war the American soldiers returned home .A. safely and tiringB. safety and tiri

问题补充：

After the war, the American soldiers returned home,.

A. safely and tiring

B. safety and tiring

C. safe and tiring

D. safe but tired

答案：

A. safely and tiring

B. safety and tiring

C. safe and tiring

(答案→)D. safe but tired

解析：考查形容词用法。本题中的形容词safe和tired是对句子主语the American soldiers进行修饰。因为主语是人，所以使用过去分词转换的形容词tired修饰。Tiring令人疲惫的，是现在分词转换的形容词，通常修饰事物；句意：战争以后，那些美国士兵回到了家乡，安全了但是却很疲惫。故D正确。