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。

I have one girl and one boy myself.
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! U& D. Z0 ^- v" A2 \+ u% H5 J. \8 nAny one might know how to do this or help? How to do the paper work in China?
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" L: ?& U: @0 J# ]- m+ s2 W, mThanks first.