如何使用 "ninetieth" 造句

1. We are celebrating our grandpa 's ninetieth birthday next week .
我们下周将庆祝爷爷90岁生日。
2. She is like the ninetieth person on the list .
她好像是名单上的第九十位。
3. The ninetieth anniversary journal of the sarawak chinese methodist church .
砂拉越基督教华人卫理公会九十周年纪念刊。
4. It 's my ninetieth birthday today .
今天是我第90个生日。
5. In his ninetieth year he had lost the ability to speak .
他90岁时已经丧失了说话能力。