At minus 130 C, a living cell can be _____ for a thousand years.

There are ____ things more important to society than educating children and providing healthcare to families.[ ]

Every hour and every minute ______precious to us because only six months are left for us to prepare for the college entrance examinations.

The famous basketballer, _______ tried to make a comeback, attracted a lot of attention.

下列各句中，表达得体的一句是