これは犬のことです。0:07 they say a dog is man's best friend and he's a preef.(=proof)
http://www.youtube.com/watch?v=_bfr0KljFdU 0:05 there's a reason why they call him man's best friend.
http://www.youtube.com/watch?v=ZlJG5mpsyvI 12:36 under his failed leadership, man's best friend has been forced into government controlled automobiles.
http://www.youtube.com/watch?v=C00f27lPrT0 0:08 what do we really know about man's best friend?
http://bridge-english.blogspot.jp/2010/06/blog-post_7764.html 忠犬ハチ公を英語でなんと言うか？
参考リンク
http://www.youtube.com/watch?v=hG9qWAlL2Vc 0:03 diamonds are a girl's best friend.
練習問題解答
a-1842 man's best friend
