如何用定语从句改写下列句子1.In the novel by Peters,the main character is

如何用定语从句改写下列句子
1.In the novel by Peters,the main character is a teenager,The film is based on the novel.
→In the novel by Peters,_______ _______the film is based,the main character is a teenager.
2.The valley is heavily polluted.The town lies in the valley.
→The valley_______ _______the town lies is heavily pollued.
3.A huge amount of oil was spilled.The effects of it are still being felt.
→A huge amount of oil was spilled,_________are still being felt.
4.This is the girl,I learned the news from the girl.
→This is the girl_______ _________ I learned the news.
5.I went up on the roof.From the place on the rool, I had a good view of the football match.
→I went up on the roof , from__________I had a good view of the football match.
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