_______ many times, he still couldn't understand.
| A．Having been told | B．Having told | C．He having been told | D．telling |
I spent the whole day repairing the motorbike. The work was _____easy.
| A．nothing but | B．something | C．all except | D．anything but |
Whoever invented______ wheel is believed to have made______ most useful invention in______ history.
| A．a; the /; | B．the; the; / | C．the;. /; / | D．a; a; the. |
_____ you are alone at home, why don’t you go downtown with your friends?
| A．Even though | B．As though | C．So that | D．Now that |
He has _____ little education that he finds it impossible for him to be equal to ____ important a task.
| A．so, such | B．such, so | C．so, so | D．such, such |
There was plenty of time. She ____ to the station.
| A．shouldn’t hurry | B．couldn’t hurry |
| C．mustn’t have hurried | D．needn’t have hurried. |