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。
3 e  h, ~3 y  |+ B
+ v& Q1 m! @  @+ G" k3 b( b  Z/ eI have one girl and one boy myself.

Any one might know how to do this or help? How to do the paper work in China?

Thanks first.