)that have never existed. The key _72_in the fact that the units of meaning, words, can be _73_together in different ways, according to _74_, to communicate different meanings.
Language is the most important learning we do. Nothing_75_humans so much as our ability to communicate abstract thoughts, _76_about the university the mind, love, dreams, or ordering a drink, It is an immensely complex_77_that we take for granted. Indeed, we are not aware of most _78_of our speech and understanding. Consider what happens when one person is speaking to _79_.The Speaker has to translate thoughts into -80 -language. Brain imaging studies suggest that the time from thoughts to the -81 -of speech is extremely fast. Only 0.04 seconds! The listener must hear the sounds to -82 -out what the speaker means. He must use the sounds of speech to -83- the words spoken., understand the pattern of -84- of the words (sentences), and finally -85 - the meaning. This takes somewhat longer, a minimum of about 0.5 seconds. But -86 -started, it is of course a continuous process.
67. A) apart        B) off          C) up           D) down
68. A) so          B) but          C) or            D) for
69.A) transfer      B) transmit      C) convey        D) communicate
70.A) to           B) from        C) over          D) on
71.A) only         B) almost      C) even          D) just
72.A) stays