根据句意和汉语注释,写出单词的正确形式。
When Johnson faces difficulty, he always has__________(勇气) to solve it.
I'm strongly _________ (反对) smoking because it may cause cancer.
Most people believe that colours (无疑地) influence our everyday life in many ways.
My classmate Kitty has been (缺席) from school for a week because of her illness.