The first and smallest unit that can be discussed in relation to language is the word. In speaking, the choice of words is 1 the utmost importance. Proper selection will eliminate one source of 2 breakdown in the communication cycle. Too often, careless use of words 3 a meeting of the mind of the speaker and listener. The words used by the speaker may 4 unfavorable reactions in the listener 5 interfere with his comprehension; hence, the transmission-reception system breaks down. 6 , inaccurate or indefinite words may make 7 difficult for the listener to understand the 8 which is being transmitted to him. The speaker who does not have specific words in working vocabulary may be 9 to explain or describe in a 10 that can be understood by listeners.

　　1. [A] of [B] at [C] for [D] on

　　2. [A] inaccessible [B] timely [C] likely [D] invalid

　　3. [A] encourages [B] prevents [C] destroys [D] offers

　　4. [A] pass out [B] take away [C] back up [D] stir up

　　5. [A] who [B] as [C] which [D] what

　　6. [A] Moreover [B] However [C] Preliminarily [D] Unexpectedly

　　7. [A] that [B] it [C] so [D] this

　　8. [A] speech [B] sense [C] message [D] meaning

　　9. [A] obscure [B] difficult [C] impossible [D] unable

　　10. [A] case [B] means [C] method [D] way

　　參考答案:ACBDC,ABCDD