Smallpox, a kind of disease, has now died ________.

To improve your spoken English, you’d better listen to the tape ______. 

My uncle’s house in the downtown area is much smaller than ours , but it is twice _______ expensive .

It was ________ that the tourists wanted to spend more time taking pictures outdoors.

----It’s a warm day, isn’t it?----Yes, it is _______ cold. I just wear a jacket.