.impossible for one .every thing in the world 选择A this is：to know B It is ：to knowC Its ：knowing D that is ：to know

.impossible for one .every thing in the world 选择A this is：to know B It is ：to know
C Its ：knowing D that is ：to know

B: impossible for one everything in the world.
希望有帮助.加油!

选bB
固定句型啊