关系副词与“介词+ which / whom”引导的定语从句练习一、用恰当的关系词填空:1.I will never forget the day I joined the Communist Youth League. 2.Is this the village the famous scientist was born?3.Sarah didnt give the reason she was late for school again.4. I will never forget the days_ I spent with my cousins in the countryside.5. I will never forget the days_ I worked with my cousins on the farm.6. The reason _ he gave for not coming was that his mother didnt allow him to come.7. Th