.Mary couldn’t make herself attention to because her classmates made so much noise.A. pai

问题补充：

.Mary couldn’t make herself attention to because her classmates made so much noise.

A. paid

B. to pay

C. pay

D. paying

答案：

(答案→)A. paid

B. to pay

C. pay

D. paying

解析：此题容易误选C, 其实此题应选A。 pay attention to 是动词短语，起及物动词的作用，在句中作宾语补足语，与宾语herself构成被动关系。