To be qualified for the job, _____.
Our teacher said to us that the earth _________ around the sun.
As soon as he comes back, I’ll tell him when __________ and see him. \
--- Do you know our town well?--- No, this is the first time I _______ here.
Many of them turned a deaf ear to his advice, ________ they knew it to be valuable.
The Great Wall is _______ tourist attraction that millions of people pour in every year.