在我爸爸五十岁生日的时.我送他了个精美礼物.用英语怎么说?
问题描述：
在我爸爸五十岁生日的时.我送他了个精美礼物.用英语怎么说?
I gave my father a pretty gift on _______?
答
I gave my father a niece(pretty) gift on his fifty brthday.
绝对不会错.