Task 6. Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.
Cholera is common in less developed countries due to poor water and sanitation conditions. It is estimated that 11 million cholera cases occur every year among children under five years of age.
A.rare
B.ordinary
C.general
D.normal