children believe they can succeed, they will never become totally independent．
| A．If | B．Though | C．Unless | D．When |
The president spoke at the business meeting for nearly an hour without ___ his notes.
| A． bringing up | B． referring to |
| C． looking for | D． trying to |
He is really an excellent doctor and he is _____ to becoming an expert in this field.
| A．in a way | B．by the way |
| C．on the way | D．under the way |
He is such a strong-willed person that there is nothing in the world that can _____ him.
| A．win | B．defeat |
| C．rescue | D．attack |
Come and see me whenever ____.
| A．you are convenient |
| B．you will be convenient |
| C．it is convenient for you |
| D．it will be convenient for you |
As we can see, the prices of vegetables _____ according to the season.
| A．vary | B．fall | C．rise | D．reject |