I’d appreciate ____ if you would like to teach me how to use blog and twitter on the Internet.

Now more people prefer a house in a coast city to ____ in such a large city as Beijing.

My mother insisted that my father should buy a piano for me, and finally he managed to finance   ______.

I hope there are enough glasses for each guest to have ____-

.—Is there anyone who is gong the Great Wall?_______