单项选择题

In 1999, the government spent about $ 39 billion to（）

A．improve the prison conditions
B．keep men and women in prison
C．build houses for prisoners
D．maintain the prisons

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单项选择题

Ⅰ PhoneticsDirections: In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the answer sheet.

A. neighbor
B. laugh
C. tough
D. cough

单项选择题

In the first paragraph, took care of means （）.

A．kept
B．looked after
C．used
D．kept and used

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