I can’t findbackpack. Can you help?
There is ________ useful book on the desk， _________ useful book belongs to my brother．
How do you like __ color of my dress?–Wonderful! I like it very much.
It is said that we will have _____ one-day holiday tomorrow, it’s ______ good news for most of the students.
David talked with a friend of ________ on the Internet for a long time yesterday.