d:to do;sit
there be 结构+名词或不定代词+to do是一种常见的句式The (global financal crisis金融危机)hasmade many people____thier moneya:to care forb:took care of c:be careful with d:to be cared about 老兄饿，太谢谢妳了，这个也不难。。相信你奥。c:be careful with make sb do sth （make +原形动词）感谢饿。。