下列那些句子含有虚拟语气？（ ）

A、How I wish I could have10,000 houses, to provide shelter for all who need it!
B、He said he hoped the students would devote what they had learned to the motherland and the people, and "make the light of youth shine on the road of striving for dreams".
C、But as an embroidery inheritor, if I left the village, the craft would not be handed down to the next generation,and I decided to stay with it after some hesitation.
D、If the Navaho and the Sioux had known what was coming for them, they never would have made those treaties.