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
We can never expect________bluer sky unless we create________less polluted world.
The couple look very excited,because their only son has been _______to Hong Kong University.
We’ll take a honeymoon trip to Venice. Would you like to _____ my dog for me while we are away?
___________two tickets for the new play at the Grand Theatre on Saturday. Shall we go and see it together?
_____ is known to all that the Amber Room belongs to the Russians.