—Where did you go on National Day?—Jiuzhai Valley. I to go to France but the expense was

问题补充：

—Where did you go on National Day?

—Jiuzhai Valley. I to go to France, but the expense was too high.

A. planned

B. would plan

C. have planned

D. had planned

答案：

A. planned

B. would plan

C. have planned

(答案→)D. had planned

解析：用“had planned”过去完成时，表示“原来，本打算”，指“过去的过去有这个计划”。句意：——国庆节你去过哪儿呢？——九寨沟。我本来计划到发过去的，但是费用太高。