You have done an important job people must be really grateful to you .
A. so… that
B. such… that
C. too … to
D. enough …. to
网友回答
A. so… that
(答案→)B. such… that
C. too … to
D. enough …. to
解析：考查固定结构。people must be really grateful to you .是句子，所以排除C和D。修饰名词job，所以用such… that结构。