Much more attention should when we have exams.A. pay toB. be paid toC. be paidD. pay

问题补充：

Much more attention should when we have exams.

A. pay to

B. be paid to

C. be paid

D. pay

答案：

A. pay to

B. be paid to

(答案→)C. be paid

D. pay

解析：句意：当我们考试时更应注意。Pay attention to注意。名词attention作了句子主语，所应用被动语态，故选C。