Have fun!
楽しんでください
have good cause to do so
そうするだけの十分な理由がある
have good [bad] circulation
血行がよい［悪い］
have good [bad] fortune
運がよい［悪い］
have [be in] good [poor] health
健康がすぐれている［すぐれない］（◆She is in good health. に比べShe is healthy. はより永続的な健康状態という含意がある）
have good [bad] hearing
耳がよい［悪い］
have good [bad] manners
行儀がよい［悪い］
have good [poor] sight
目がよい［悪い］
have great belief in his ability
彼の能力を大いに信頼する
have great practice in ...
…の腕前が非常によい
