—It’s reported that the new underground line has been completed．
—Yes, but it hasn’t been made clear it’s to be opened to traffic．
| A．that | B．who | C．what | D．when |
Do you think ________ life on Mars?
| A．it exists |
| B．there exists |
| C．it is existed |
| D．there is existed |
At the ________ news, there was a ________ expression on his face.
| A．puzzled; puzzling |
| B．puzzling; puzzle |
| C．puzzling; puzzled |
| D．puzzled; puzzle |
We were scared to death when the fire ________. Fortunately, it was put out before it caused much damage.
| A．broke out |
| B．came out |
| C．gave out |
| D．turned out |
He has ________ letters to answer and has to work from morning to night.
| A．much |
| B．a great deal of |
| C．masses of |
| D．the number of |
It’s ________ for the Shenzhou 7 spaceship that every Chinese feels cheerful and proud.
| A．so a successful flight |
| B．so successful a flight |
| C．such successful a flight |
| D．a such successful flight |