— Ten dollars please! — How terrible! I to bring my wallet with me.A. was forgettingB.

问题补充：

— Ten dollars, please! — How terrible! I to bring my wallet with me.

A. was forgetting

B. forgot

C. had forgotten

D. am forgetting

答案：

A. was forgetting

(答案→)B. forgot

C. had forgotten

D. am forgetting

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