A. unfortunately B. river C. nationality D. ill A. infant B. sentence C. aphid D. philosopher A. effect B. coast C. human being D. organised A. private B. kid C. online D. till now A. ours B. revolution C. brush one's teeth D. seize A. endless B. ignoble C. forever D. bicycle A. find out B. challenging C. use up D. pride A. somehow B. put on C. meaning D. wipe A. bonus B. die of C. southeastern D. universal A. pop B. keep away from C. instruction D. hold onto