The fire caused thousands of pounds' ________of damage.

There seemed to be no human beings in that village, and the only ______ of life was a boat tied to a tree.

—I have to ask a(n) _____ of you because the luggage is too heavy for me.—Oh, with pleasure.

 --What kind of ________ makes 3G cellphones so popular with the young? --Video communication, I think.

With international ______ and education exchanges increasing every year, the number of Chinese students studying abroad has increased rapidly.