11. 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 |
Jane, I’m sorry, I___you-you have changed a lot.
| A．haven’t recognized | B．hadn’t recognized |
| C．didn’t recognize | D．won’t recognize |
The lecture was so complex that I simply couldn’t ______ at all. Could you explain it to me?
| A．bring on | B．bring in |
| C．take on | D．take in |
The argument went on for hours as neither side would___.
| A．give in | B．give away |
| C．give off | D．give out |
If he can____his natural ability with hard work, he should be a success..
| A．connect | B．combine | C．link | D．join |
It is reported that a storm is on its way, but the weather today is ______ warm and sunny.
| A．luckily | B．fortunately |
| C．surprisingly | D．hardly |