30. It is said that Columbus Day is ______ the arrival of Christopher Columbus in the New World in the USA.
A. in honor of B. for the honor of C. in favor of D. in place of
Mr. Smith gradually _____ a knowledge of the subject.
| A．attained | B．achieved | C．required | D．acquired |
The policeman stopped him when he was driving home and _____ him of speeding.
| A．charged | B．accused | C．blamed | D．deprived |
His new appointment takes _____ from the beginning of next month.
| A．place | B．effect | C．post | D．office、 |
On this happy occasion, I'd like to say that we are _____ much obliged to you for your kind cooperation.
| A．even so | B．ever so | C．as yet | D．so far |
The car was completely _____ and the driver seriously injured.
| A．broken off | B．taken off | C．written off | D．picked up |