16. The flowers on the table were a manifestation of the child's love for his mother.

　　[A] demonstration [B] (an) infestation [C] combination [D] satisfaction

　　17. Most of the exhibitions were free, but for some a nominal fee was asked.

　　[A] large [B] raised [C] small [D] higher

　　18. I find his idea extremely abhorrent.

　　[A] superficial [B] dangerous [C] distasteful [D] illogical

　　19. Hypnotized individuals can be induced to act bizarrely.

　　[A] in harmful ways [B] against their ways [C] oddly [D] emotionally

　　20. The original bobsled was merely a strip of animal skin pulled tight and fastened between smoothed ships of wood.

　　[A] placed [B] used [C] attached [D] released

　　Keys: 16～20 ACCCC