单项选择题

21（）

A．which
B．that
C．all
D．those

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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

I could just ()a banner in the distance, but I could not see what's on it.

A. see to
B. clear up
C. make out
D. look at

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