Having been married for over 10 years the couple finally because they quarreled a lot.A.

问题补充：

Having been married for over 10 years, the couple finally because they quarreled a lot.

A. broke up

B. broke down

C. broke out

D. broke in

答案：

(答案→)A. broke up

B. broke down

C. broke out

D. broke in

解析：句意：结婚10多年后，他们因为经常吵架而分手。四个选项的含义分别是：A. broke up分手，解体，B. broke down 崩溃，垮掉，破裂，C. broke out爆发，D. broke in突然闯入，所以选A。