“九十岁”造句

他准有九十岁了.
He must be going on for ninety.

老人已经九十岁了,手术后能活下来真是幸运.
The old man was 90 years old and lucky to come through his operation.

撒拉已经九十岁了,她还能生孩子 吗 ?
Can Sarah bear a son when she is ninety?