Fortunately what the witness reported to the police on the phone led to .A. the suspect's

问题补充：

Fortunately, what the witness reported to the police on the phone led to .

A. the suspects being captured

B. capture the suspect

C. the suspect having captured

D. be captured by the suspect

答案：

(答案→)A. the suspects being captured

B. capture the suspect

C. the suspect having captured

D. be captured by the suspect

解析：首先，分析句子结构可知what引导的从句作句子主语，谓语动词led to，因此缺少宾语，不缺少谓语动词，而B、D结构都只能作谓语，首先排除；此外由于嫌疑犯（suspect）与动词capture是被动关系，因此选择表被动的非谓语动词结构A