根据句意及首字母提示,把句子所缺单词补充完整
1.The months of winter usually are N________,D_______and J________.
2.Shanghai is in the e_______of China.
3.Teachers’ Day is on the t_______of S__________.
4.The ball is 200 yuan. It is d______.
5.This plane f_______ to Guangzhou every day.
6.The box is h_______. I can’t carry it.