請問各位明白人: I-140 添表問題

正在添I-140, 遇到問題:

Part4. Processing Information.
No. 1 "Alien is in the United States and will apply for adjustment of status to that of lawful perme..."
Alien's country of current residence or, if now in the U.S., last permanent residence abroad

如果是加拿大的綠卡, 應該添中國還是加拿大?
我在加拿大沒有任何地址.

謝謝各位!