Just before the Chinese class, I suddenly realized that I forgot _______ my Chinese text book.

（2007年浙江省第二次五校联考，8）How long do you think ___________ the Microsoft brings out a new product?

__________ big the office is! Is it for Tom?—No, it’s ___________. He shares it with me.

Rice is grown in South China _____ then. [ ]

She said that she _____ for someone to help her.