问题补充：
Before driving into the city, you are required to get your car.
A. washed
B. wash
C. washing
D. to wash
答案：
(答案→)A. washed
B. wash
C. washing
D. to wash
解析：考查使役动词。get, make, let, have是使役动词，意为“使，让”，make/let/have sb do sth；get sb to do sth让某人做某事；get/have sth done让某事被别人做，car和wash是动宾关系，应该用过去分词，故选A。
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