小明为爷爷祝寿写了一副对联“逾古稀又十年可喜慈颜久驻，去期颐尚廿载预征后福无疆”，对小明爷爷年纪表述正确的一项是（ ）

He was so ___ that his legs ___ under him.

Spielberg, _____ mother was a musical teacher, was born in 1964 in a small town in America.

All the employees at the company are _______ their business as usual.

I like the program Man and Nature.— But I _______Sports News.