根据下列句子及所给汉语注释，写出空缺处各单词的正确形式。（每空只写一词）
My _________（本国的）language is Chinese．
He went through the forest under the __________（保护）of his dog．
There are seven ____________ （大洲） on the earth．
She is ____________（挑剔） about what she eats．
The patient was lying on the floor __________（失去知觉）．
Some fossil __________（燃料）result in increase in carbon dioxide．
I was feeling_________ （不舒服） hot．
He has gained ______ （实践的） experience of sailing as a sailor．
The ten most ____________（频繁地） asked questions are listed below．
Nowadays we still can see rivers p________ with chemical waste from factories．