Although he failed when he tried doing the experiment for the first time, he decided to try it____.
| A．once in a while | B．at once | C．once more | D．once |
New York, ______ last year, is a nice city.
| A．that I visited |
| B．which I visited |
| C．where I visited |
| D．in which I visited |
You can take any book ______ interests you best.
| A．it |
| B．that |
| C．this |
| D．what |
Do you still remember rge chicken farm ______ we visited three month ago?
| A．where |
| B．when |
| C．that |
| D．what |
George Orwell, ______ was Eric Arthur, wrote many political novels and essays.
| A．the real name |
| B．what his real name |
| C．his real name |
| D．whose real name |
Look out! Don’t get too close to the house ______roof is under repair.
| A．whose |
| B．which |
| C．of which |
| D．that |