单项选择题

The first and smallest unit that can be discussed in relation to language is the word. In speaking, the choice of words is (31) the utmost importance. Proper selection will eliminate one source of (32) breakdown in the communication cycle. Too often, careless use of words (33) a meeting of the minds of the speaker and listener. The words used by the speaker may (34) unfavorable reactions in the listener (35) interfere with his comprehension; hence, the transmission-reception system breaks down. (36) , inaccurate or indefinite words may make (37) difficult for the listener to understand the (38) which is being transmitted to him. The speaker who does not have specific words in his working vocabulary may be (39) to explain or describe in a (40) that can be understood by his listeners.