Lily with her parents has been in the Greener China since three years ago.

主语带有with,combined with,in addition to ,including,together with 等等附加成分,谓语的数不受附加成分的影响仍然与主语保持一致
例如:
Professor Taylor ,with six of his students ,is attending a conference in Boston organized to compare current practice in the United States with those of other nations.