---Why didn’t you tell me the truth about his illness? --- I knew nothing about it at tha

问题补充：

---Why didn’t you tell me the truth about his illness?

---, I knew nothing about it at that time.

A. Tell you the truth

B. Telling you the truth

C. To be honest

D. Being honest\

答案：

A. Tell you the truth

(答案→)B. Telling you the truth

C. To be honest

D. Being honest\

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