找出每组中与其它三个单词不同的选项。
( )(1)A. fall B. summer C. spring D. September
( )(2)A. river B. cloud C. eagle D. lake
( )(3)A. tall B. he C. heavy D. strong
( )(4)A. how B. mine C. his D. theirs
( )(5)A. mountain B. rainy C. windy D. sunny