I received a call one morning from a lady, but she phoned________， as she kept asking to speak to someone else who I didn't know at all.
| A．by accident | B．by mistake |
| C．by chance | D．by force |
She has already tried her best. Please don’t be too ____about her job.
| A．special | B．responsible |
| C．unusual | D．particular |
It is one thing to enjoy listening to good music, but it is ____another to play it well yourself.
| A．quite | B．very | C．rather | D．much |
_______his thoughts, the scientist didn’t notice what had happened before him.
| A．Absorbed in | B．Caught in |
| C．Used to | D．Interested in |
The professor could tell by the _________look in Mars's eyes that she didn’t understand a single word of his lecture.
| A．cold | B．blank |
| C．fresh | D．innocent |
If the sun ________ in the west tomorrow, Helen _________ Tom!
| A．were to rise, would marry | B．were to rise, will marry |
| C．rises, would marry | D．rises, will marry |