单项选择题

22（）

A．for
B．in
C．to
D．on

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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

Which of the following is the best title for the passage（）

A．An Extensive Collection of Glass Flowers.
B．The Live Leopold and Rudolph Blaschka.
C．Flowers Native to the United States.
D．Materials Used for Artificial Flowers.