Columbus’s discovery of the “New World” took place _______.
| A．on purpose | B．by accident | C．by design | D．by mistake |
I have reached a point in my life _____ I am supposed to make decisions of my own.
| A．which | B．where | C．how | D．why |
You will be successful in the interview ______ you have confidence.
| A．before | B．once | C．until | D．though |
－I’ve read another book this week.
－Well, maybe _____ is not how much you read but what you read that counts.
| A．this | B．that | C．there | D．it |
Could I speak to ____is in charge of International Sales, please ?
| A．anyone | B．someone |
| C．whoever | D．no matter who |
Forty people were expected to the party. But only half of them ______.
| A．turned around | B．turned up |
| C．turned off | D．turned out |