---Why did the police_____ the crowd?
---Because the president’s car ____ in the street.
A.break down; went wrong
B.break up; out of order
C.break down; broke up
D.break up; broke down
答案:D
本题考查动词词组意思的辨析。break up使粉碎;弄破;解散;结束;解体解散;中断;终止; break down打破;发生故障;中止;句意为:为什么警察要疏散人群?因为总统的汽车在接受发生故障了。如果选择B,需要在out of order前面加was.