19. According to the author, it is essential that . . . .
A) some old-fashioned inter-personal communication be maintained
B) the person may see the caller and feel a personal touch
C) they are trying to re-establish the original methods while using high-tech systems
D) this is now made probable by satellite systems launched into orbit
20. There is such a lack of communication that . . . .
A) we can obviously see attempts to get back to the "old way" through usage of time saving methods
B) this is where the telephone plays a role
C) even in families, messages or notes to each other
D) it facilitates an almost instantaneous connection at a reasonable cost
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