_________ the task on time, he was fired by the boss.
| A．Not completed | B．Not having completed |
| C．Not have completed | D．Not being completed |
Although the teacher did not mention any names, everybody knew who he was ____.
| A．attending to | B．turning to | C．referring to | D．talking to |
It ____ be our headmaster. He has gone to Beijing.
| A．mustn’t | B．won’t | C．may not | D．can’t |
---Would you like to go to the concert with me, Mary?
--- I have got no interest in it; ____, I have lots of homework to do.
| A．otherwise | B．besides | C．however | D．therefore |
Papermaking began in China and from here it ____ to North Africa and Europe.
| A．spread | B．grew | C．carried | D．developed |
We needed a new cupboard for the kitchen. So Peter made____ from some wood we had.
| A．it | B．one | C．that | D．another |