He failed the mid-term examination and only then________how much time he had wasted.
| A．he realized | B．did he realize |
| C．he had realized | D．had he realized |
The fact ____ ancient Greek civilization had a great influence on Western culture is known to many people.
| A．whether | B．that |
| C．if | D．how |
---_______ the farmers discovered the entrance to the secret cave in the valley?
--- Totally by chance.
| A．When was it | B．How was it |
| C．How was it that | D．When was it that |
__________ he does has nothing to do with me.
| A．If | B．No matter what |
| C．That | D．whatever |
Mr White is opposed to repairing the old building, and that’s ______ I don’t agree.
| A．which | B．that |
| C．where | D．what |
____ a peasant boy of no more than seventeen, who was badly wounded.
| A．Seated in the corner was |
| B．Was seated in the corner |
| C．In the corner was seating |
| D．In the corner was seated |