______ means that language can be used to refer to the contexts that are removed from the immediate situation of the speaker, especially, time and space.

A．a competition among sportsmen
B．an event for everyone
C．a social force
D．the condition of women

A．The old man had very poor vision.
B．The old man’ s wife had an eye problem.
C．The old man failed to see what be should have seen.
D．The old man’ s wife was not easy to recogniz