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 door _____ open, no matter how hard she pushes.
When I first met Doris I didn’t like her, but I ______ my mind.
An air crash accident happened to the plane, ______.
I wondered what difficulty he had _____ the plan.
_______ confidence and patience, they failed to settle the difficult problem.