Do you know when we — I’m not sure. I will tell you about it when the time .

下列各句中“之”字用法归类正确的一项是（ ）①齐楚之精英 ②杳不知其所之 ③秦人视之亦不甚惜④多于南亩之农夫 ⑤项伯乃夜驰之沛公军 ⑥欲人之无惑也难矣⑦师道之不传也久矣 ⑧夫晋，何厌之有 ⑨公将鼓之 ⑩句读之不知

ice, the postman refused to deliver our letters unless we changed ourdog

Sam has been appointed ____ manager of engineeringdepartment to take ____place of Tim

It looks________you are ill.You should go to see the doctor[ ]