(1/2) (2/2) I will never forget the day when the great scientist came to our school and give us a speech.
我永远不会忘记那位伟大科学家来到我们学校,给我们讲话的那一天.
答案:C, when引导一个时间定语从句,修饰the day
(1/2) (2/2) I will never forget the day when the great scientist came to our school and give us a speech.
我永远不会忘记那位伟大科学家来到我们学校,给我们讲话的那一天.
答案:C, when引导一个时间定语从句,修饰the day