The Great Wall istourist attraction that millions of people pour in every year.
so a well-known
a so well-known
such well-known
such a well-known
—Would you like ____, sir?—No, thanks. I have had much.
I made a call to my parents yesterday. To my disappointment, ____of them answered it.
— What do you think of the White House?— Splendid. While I was studying in America, I it twice.
Everyone has periods in their lives everything seems very hard.
—Do you know Lily has gone to London?—Oh,________I haven't seen her these days.