根据句意和汉语注释写出单词的适当形式。
Don’t you think that Mr Wu is an _____________（极好的）teacher？
Taking more exercise every day will make you _____________（健康）than before.
We should learn English well because it is one of the important ___________（语言） in the world.
My English teacher is always _____________（耐心的）with me. She helps me a lot.