单词拼写：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. Most of the students are ______ (熟悉) with these books.
3. In our ______ (意见), the water should be free of charge.
4. The man was a millionaire, but now he is in ______ (欠债).
5. ______ (明显), she is too angry to forgive him at present.
6. He saw a boy ______ (挣扎) in the river and saved him.
7. She helped found a national ______ (运动) to stop the making of drugs.
8. The trees are extremely tall and some ______ (测量为) over 100 meters.
9. ______ (围绕) by many high mountains and next to the Pacific Ocean, Vancouver
has a very pleasant climate.
10. The stadium is within walking ______ (距离).