Madonna ____a straight A student,but it was dancing that she was really crazy about.
| A．must be | B．could be | C．must have been | D．could have been |
We should consider what use can _____ such a material.
| A．be made of |
| B．be made from |
| C．be made up |
| D．be made in |
_____ on facts, the report should be reliable(可靠的).
| A．Based |
| B．Basing |
| C．To be based |
| D．To base |
There were so many people in the street watching the fire that the firefighters could not get _____ to the building on fire as soon as possible.
| A．closely |
| B．close |
| C．around |
| D．in |
Her face went red _____ he had said.
| A．because that |
| B．because what |
| C．because of what |
| D．because |
The teacher asked an easy question, but not a proper answer _____.
| A．came up |
| B．keep up |
| C．catch up |
| D．was come up |