听力原文:How often do we need to change the oil in the car? (A) Every 3 months or every 3

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听力原文:How often do we need to change the oil in the car?

(A) Every 3 months or every 3,000 miles.

(B) I changed it last week.

(C) I want to change the color of my car.

(22)

A.

B.

C.

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