收养16 years old boy，just 失去亲父, how to申请?

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收养16 years old boy，just 失去亲父, how to申请?收养16 years old boy，just 失去亲父, how to申请到加拿大? 母亲失去监护权，以后不可能申请到加拿大探亲的机会。

" u6 ]& _% z4 i" m! g& ^, x) WI have one girl and one boy myself.

9 K$ J' T$ k2 p% h) ^Any one might know how to do this or help? How to do the paper work in China?
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6 w& z+ p8 k! w* n3 bThanks first.