The desks he made are ___ more expensive than these I saw.

—How are your recent trip to Sichuan?—I’ve never had     one before.

Tom is a promising student. I am sure that with his________effort, he will make a very successful scientist.

Internet is a great tool if we know how to use it ,but it shouldn’t be a replacement for ______life.

After a lot of questioning, Jack ______ admitted he had taken the car.