Sunset at Mount Huangshan is a beautiful scene, I’ll never forget.
| A．one | B．it | C．what | D．that |
Twenty miles a long way to cover.
| A．were | B．are | C．is | D．seem to be |
Ten thousand dollars a large sum of money.
| A．are | B．is | C．were | D．seem |
Very few his address in the town.
| A．knows | B．know | C．are knowing | D．has known |
Not only the workers but also the machine not there.
| A．are | B．were | C．is | D．has |
When and where this took place still unknown.
| A．are | B．were | C．is | D．has |