根据括号中所给的汉语写出单词,使句子意思完整正确。
The baby has three ____(牙齿) now.
When I was in Canada,I ____(想念) my parents very much.
My father is getting ____ (肥胖) than before because he seldom does any sports.
I bought a toy car for my son's ____(第九) birthday.
The whole country was filled with____(悲伤) because of the heavy accident.