He lost both of his parents in the big earthquake but for him a kind couple adopted him

问题补充：

He lost both of his parents in the big earthquake, but for him, a kind couple adopted him and took good care of him.

A. suddenly

B. naturally

C. obviously

D. luckily

答案：

A. suddenly

B. naturally

C. obviously

(答案→)D. luckily

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