根据下列句子及所给汉语注释，在句子右边的横线上写出空缺处各单词的正确形式。(每空只写一词)
1.My class are _________ (争论) about the answers to the questions with one another.
2.The man was a millionaire, but now he is in _________ (欠债).
3.___________ (明显), she is too angry to forgive him at present.
4.He saw a boy ___________ (挣扎) in the river and saved him.
5.The stadium is within walking ___________ (距离).