Do you know by the time you leaves school your parents $ 6 000 on your education.A. will

问题补充：

Do you know by the time you leaves school your parents $ 6 000 on your education.

A. will have spent

B. will spend

C. will be spending

D. have spent

答案：

(答案→)A. will have spent

B. will spend

C. will be spending

D. have spent

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