— The room is so dirty. _____ we clean it ?
— Of course.
| A．Will | B．Shall | C．Would | D．Do |
—Do you mind if I open the window?
—________.I feel a bit cold.
| A．Of course not | B．No, please don’t. | C．I’d rather you didn’t | D．Go ahead |
Yao Ming is generally ________ as the best basketball player in the world.
| A．substituted | B．acknowledged | C．contradicted | D．recommended |
_______environmental damage is done, it takes many years for the ecosystem to recover.
| A．Even if | B．If only | C．While | D．Once |
In 1941 the US ________ war on the Axis.
| A．informed | B．declared | C．announced | D．related |
The criminal, as well as some ______ people, was arrested by the police yesterday.
| A．sharp | B．relevant | C．vivid | D．skilled |