He has devoted himself __ mankind.
to benefit B. benefiting C. to benefiting D. benefited
.After the new technique was introduced the factory produced _______cars in 1994 as the year before.
| A．as twice many | B．as many twice | C．twice as many | D．twice as |
I am in ________charge of the class which was in_________
charge of my wife.
| A．不填；the | B．不填；不填 |
| C．the; 不填 | D．the; the |
In my opinion, what he told us just now about the affair simply doesn’t make any ________.
| A．idea | B．meaning | C．sense | D．point |
The river, _______the bank are covered with trees, is very long.
| A．whose | B．which | C．of which | D．which of |
The editor’s job is to keep the newspaper_____and________to the readers.
| A．balanced; interested | B．balancing; interesting |
| C．balanced; interesting | D．balancing; interested |