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
The little boy was allowed to go to have a swim _____ he finished his homework.
-- Can you keep an eye on my bag? I need to go to the washing closet.-- ________ . It'll be safe with me.
Jack has been working hard these days.It's obvious that there is ________he is eager for but didn't mention to us.
With the on-going campaign of banning cigarette,the number of people who have given up smoking________.
The video,Gangnam Style,is becoming the first video________ more than one billion views.