用所给词汇的适当形式填空。(共10小题,每小题1分)
It was generous of you _________ (lend) me so much money when I was in    need.
Would you mind ___________ (open) the window?
A few ___________ (minute) later, a beautiful girl entered with a book in her hand.
She made her son ___________ (clean) the kitchen last Sunday.
The singer's wonderful voice left a deep__________ (impress) on the audiences.
The film is quite __________ (education), and we can learn a lot from it.
We are looking forward to __________ (visit) Korea this summer holiday.
“Don’t cry” mother said to the girl __________ (gentle)
If you want to understand one person, you should often have__________ (communicate) with each other.
Peter's _________ (behave) is strange today; maybe something unusual happened to him.