—I wonder why Mary is so unfriendly to us. —She is ________ than unfriendly, I’m afraid. 

--- Do you think it _____ to argue with them?  --- The question is not worthy _____.

From his _____look , we could see that he hadn’t expected that we could raise such ______questions to him.

—Why are so many northern Chinese visiting Southeast Asia countries recently ?—They are trying to get a ___shelter from the cold weather in winter.

The old building still looks beautiful. It is about _______________.