Bill ______ a couch potato and now he has a healthy lifestyle.
| A．is | B．used to be | C．is used to being | D．is used to be |
________ much advice you give him, he does exactly what he wants.
| A．No matter | B．Whether |
| C．Whatever | D．However |
________ you have to do the job, you should try your best to do it well even though it may be very difficult for you.
| A．Since | B．While |
| C．Unless | D．Though |
Besides, ________ well it is translated, the spirit of the original work is lost.
| A．no matter how | B．no matter what |
| C．no matter when | D．no matter where |
He never thought that his success came ________ he least wanted it.
| A．until | B．since |
| C．when | D．while |
Some experts have said that ________ children believe they can succeed, they will never become totally confident of themselves.
| A．if | B．since |
| C．once | D．unless |