1.This is the school which they studied at ten years ago .
2.Never forget the day on which i entered my new school .
3.the picture reminded me of my childhood when we didn't have enough to eat .
4.I was busy this morning that i cleaned my room .
5.We came to the park of which in front stood two old trees.
我不确定会全对啦~我马上高三了,应该有正确率~