He saw the MP4 player a moment ago, but he didn’t know how it disappeared _______

How long did you spend ______ this book —About two hours.

With the rapid development of the city, he can hardly find the place __ he used to play with his childhood friends.

Millie. Welcome to our library. Which book would you like—I’d like books about animals. Can I ______ some, Mrs. Yang

Why are you looking at me in _____surprised expression─ Don’t you think _____ question you askedis surprising