______ a reply, he decided to write again.
| A．Not receiving | B．Receiving not |
| C．Not having received | D．Having not received |
A modern city has been set up in _______ was a wasteland ten years ago.
| A．what |
| B．which |
| C．that |
| D．where |
Determination is a kind of basic quality and this is ________ it takes to do jobs well.
| A．what |
| B．that |
| C．which |
| D．why |
The difficulty we now meet with is ________ we can persuade him to tell the truth.
| A．whether |
| B．that |
| C．what |
| D．why |
Then Mr Smith told me ________ he was doing was very important.
| A．that |
| B．why |
| C．what that |
| D．why what |
Would you mind telling me _______ language your friend speaks?
| A．which |
| B．what |
| C．how |
| D．that |