The doctors say that good diet, exercise and fresh air, all of which _____ the health and long life.

Thenew CRH train between Beijing and Shanghai _______ speed can reach about 380km/h will benefit people a lot

__________ any other species, human populations are shaped by the usual forces of natural selection, like famine, disease or climate.[ ]

This is quite a new phrase.–Right. It has already ____the language.

Is there anything you’d like for dinner?—No, nothing ____