Tom is _____ taller than last year

（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?

Hello, grandpa. I am so happy ________ back home during the winter holidays.

I hear Sam has gone to Qingdao for his holiday.— Oh, how nice! Do you know when he ?

This book is really interesting. Could you ________ it with me?