Which wine do you prefer, this one or that one?
これとあれ、どっちのワインがいい?
Which train should I take?
どっちの電車に乗ればいいの?
Which way does this window face?
この窓はどっち向き?
Which came first, the chicken or the egg?
鶏が先か、卵が先か?
Which came first どちらが原因でどちらが結果か
Which is correct?
どっちが正しい?
Why is it that you've come to hate him?
あなたが彼を大嫌いになったのはなぜ?
Why did he go against my advice?
なぜ彼は僕のアドバイスに従わなかったんだ?
Why is he in such a rush?
どうして彼はあんなに慌ててるんだ?
Why don't you try to save electricity?
節電に努めたら?
Why do you look so happy?
なんでそんなにうれしそうなの?