AIDS is said ____ the biggest health challenge to both men and women in that area over the past few years.

A.that it is B. to be C. that it has been D. to have been

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科目：高中英語 來源： 題型：單選題

AIDS is said ______ the biggest health challenge to both men and women in that area over the past few years.

科目：高中英語 來源： 題型：

AIDS is said __________ the biggest health challenge to both men and women in that area over the past few years.

A. that it is B. to be

C. that it has been D. to have been

科目：高中英語 來源： 題型：

AIDS is said______the biggest health challenge to both men and women in that area over the past few years.

A.that it is B.to be

C.that it has been D.to have been

科目：高中英語 來源： 題型：

AIDS is said ______ the biggest health challenge to both men and women in that area over the past few years.

A. that it is B. to be C. that it has been D. to have been

科目：高中英語 來源：2014屆河北石家莊無極中學高三上學期第一次月考英語卷（解析版） 題型：單項填空

AIDS is said _______ the biggest health challenge to both men and women in that area over the past few years.

A. that it is B. to be C. that it has been D. to have been

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