Ever since my brother graduated from the university, he _______ in the present company for 15 years and he is now chief engineer of the company.
| A．worked | B．has been working |
| C．is working | D．works |
_____ the pain was bad, _____he did not complain.
| A．Although, but | B．Though, but |
| C．Though, yet | D．Even, still |
_____we fail , we _____trying.
| A．Even if , don’t stop | B．Even though, won’t stop |
| C．Even, will not stop | D．Even although, shall never stop |
_____it was late , she went on working.
| A．Though | B．Because | C．Since | D．Whether |
He started early so that he_____there in time.
| A．could get | B．got | C．had got | D．would have got |
_____clearly so that your teacher_____you correctly.
| A．Write, can understand | B．Having written, can understand |
| C．To write, could understand | D．Writing, will understand |