We had planned to arrive at the park at 9 a.m. but unluckily the car on the way.A. brok

问题补充：

We had planned to arrive at the park at 9 a.m., but unluckily, the car on the way.

A. broke away

B. broke down

C. broke up

D. broke into

答案：

A. broke away

(答案→)B. broke down

C. broke up

D. broke into

解析：考查短语辨析。break away (from)脱离 break down （机器）抛锚；（情感）崩溃；（身体）垮了； break up （会议）结束；（关系）破裂；解散 break into闯入本题指的是：汽车在路上抛锚了。故选B。