47. China’s winning the host of the Olympic was an exciting moment, ______ all Chinese will never forget.
| A．that | B．it | C．one | D．What |
Baoji isn’t ____ she used to be. Great changes have taken place in the past years.
| A．that | B．which | C．like | D．what |
Every possible means ______, but none proves successful.
| A．has tried | B．have been tried |
| C．is being tried | D．has been tried |
13. His plan is such a good one ____ we all agreed to accept it.
| A．as | B．and |
| C．that | D．so |
He was so busy. He cannot afford enough time with his son _____ he wants to.
| A．even if | B．as if | C．because | D．before |
Someone is ringing the doorbell. Go and see ____.
| A．who is he | B．who he is |
| C．who is it | D．who it is |