15.A. Even B. Thus C. Hence D. Therefore
16.A. present B. nowadays C. future D. past
17.A. sound B. strange C. profound D. appropriate
18.A. roads B. ways C. methods D. streets
19.A. of B. at C. of D. with
20.A. nothing B. something C. everything D. anything
16.A. present B. nowadays C. future D. past
17.A. sound B. strange C. profound D. appropriate
18.A. roads B. ways C. methods D. streets
19.A. of B. at C. of D. with
20.A. nothing B. something C. everything D. anything