When asked (him) to compare the education system of china and kor_英语解答

When asked (him) to compare the education system of china and korea ,the professor gave no compare
请问其中加括号的him 需要加吗为什么

人气：371 ℃　时间：2019-11-15 07:22:05

解答

不用加,前后主语一致时,前面句子的主语可以省略.加上以后是病句吗正常应该是when he/she was asked to compare ...........，前后助于一直，所以才省略的