The tax treaty between US & China under article 20 concludes with "The benefits provided under this Article shall extend only for such period of time as is reasonably necessary to complete the education or training" somewhere else there is a clause that the beneficiary is in the "other country" (USA in your case) temporarily.
Thus while you still comply with the tax treaty and should be eligible for non-taxing of up to $5000 of income from personal services, the fact that you have applied for Green Card ( permanent residence) and married to US citizen, may prejudice your position to the extent that you are NOT intending to be temporarily in the USA.