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141. Canaries are often said to have ______ voices because they make such sweet, harmonious sounds.
A. insistent
B. unnatural
C. melodious
D. inaudible
E. strident
142. The ______ plots of Agatha Christie's detective stories reflect the complexities hidden beneath the simple appearances of English village life.
A. intricate
B. discrete
C. straightfoward
D. elementary
E. vacuous
