根据句意或中文提示写出单词，使句子完整正确，
December is the_______ month of-a year.
Millie is talking about_______ (收集)things for children in poor area.
The color of the grape(葡萄)is_______．（紫色）
They often visit_______（博物馆）with their friends on Sundays.
-Listen, who is _______ at the door?
-Maybe my mother is coming back.
We're in a super_______（现代的）city, Shanghai.
-What is your favourite_______？
-I like Geography best.