题目内容

Color—blind people often find it difficult to________ between blue and green．

A. divide
B. distinguish
C. separate
D. differ

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请在第33处填上正确答案。

A. spirit
B. result
C. strength
D. courage

请在第57处填上正确答案。

A．secretary B．select C．separate D．sentence

A. secretary
B. select
C. separate
D. sentence

请将正确答案填在第32处。

A. to
B. for
C. possibly
D. actually