根据句意或句子的语法要求，用括号中所给单词的适当形式填空。
Mr And Mrs White have been       (marry) for half a century.
Would you mind ________ (close) the window?
The old man was so kind and he led us out of        (dark).
Guangzhou is the largest city in the        (south) part of China.
What do you think of those __________ (Europe) rulers in history?
It is my       (please) to become part of your group.
I don't know how ________ (use) the new camera.
James is       (able) to cook himself anything and has to eat biscuits.
So far, we have sold out 200       (copy) of the book.
I saw three ________ (Germany) in the street just now.