It was not until December 31______we heard from him.
A. which
B. when
C. that
D. then
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He had been_____to appear in court on charges of incitement of lawbreaking.
A. illuminated
B. summoned
C. prevailed
D. trailed
My neighbor tended to react in a heat and____way.
A. impetuous
B. impertinent
C. imperative
D. imperceptible
Which of the following statements can be inferred from the passage？
A. We are likely to save an animal species which poses a threat to us.
B. Even scientists are not interested in saving small and insignificant invertebrates.
Conservationists are becoming more realistic and media-conscious about their choice of animal species to save.
D. One to three species become extinct every day due to pollution.
Psychoanalysts tend to regard both____and masochism as arising from childhood deprivation.
A. attachment
B. distinction
C. ingenuity
D. sadism
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