单词拼写 (共10小题，每小题1分，满分10分)
根据首字母或汉语提示写出所缺单词的正确形式。
When she heard the funny story, she burst into     （笑声）.
We have decided to invite Professor Liu to give us a    （讲座） on the history of our Party.
The black cloud     （表明.暗示）that it will rain soon. We’d better go back home quickly.
She told me that she    （欠…）  her teachers and parents a great deal for their help and her husband for his support.
She is a girl with little patience. She is      （不适合） to look after the children.
    （一般地） speaking, the more expensive the camera, the better its quality.
Many people suffered from the effects of poor nutrition and even ______ (挨饿) because of a lack of food.
Each family in the small village is living a         (欢乐的) life.
He had led three great Pacific ______ (航海／航行) during his life.
The boy has made great ______ (进步) this year and therefore his teachers often praise him.