改错!The suspect and some clues which they have discovered are very important to the detectivesHe will never forget the day which he entered the college.两句有一处错误,可能偏向于语法错误,求正确回答

问题描述:

改错!The suspect and some clues which they have discovered are very important to the detectives
He will never forget the day which he entered the college.两句有一处错误,可能偏向于语法错误,求正确回答

1 which——that因为原句中的 they have discovered是一个定语从句,修饰先行词The suspect and some clues,而当先行词既有人又有物时(比如此句的The suspect and some clues),就只能用that引导定语从句.不能用which....