Mark drives his car too fast and, what's more, very carelessly, ________ worries his mother.
| A．a | B．what |
| C．it | D．which |
Is it that you often play computer games ________ worries your parents?
| A．why | B．that |
| C．which | D．what |
To live with a high ideal is a successful life. It is not what one does, ________ what one tries to do, that makes a man strong.
| A．nor | B．but |
| C．or | D．and |
David said that it was because of his strong interest in literature ________ he chose the course.
| A．that | B．what |
| C．why | D．how |
How many countries ________ the European Union made up of, do you know?
| A．is | B．are |
| C．have | D．has |
On the small island, which is at the entrance to New York Harbor, ________.
| A．the Statue of Liberty stands |
| B．stands the Statue of Liberty |
| C．does the Statue of Liberty stand |
| D．does stand the Statue of Liberty |