Question

3. Only when he apologizes for his rudeness      I speak to him again.

Answer 1

3. will句意：只有他為他的粗魯行為道歉時(shí)，我才會(huì)再跟他講話。"only+時(shí)間狀語從句"放在句首時(shí)，主句要部分倒裝。when引導(dǎo)的從句用一般現(xiàn)在時(shí)表將來，故主句應(yīng)該用將來時(shí)。