____ printed, this science fiction will be popular among the students.
| A．Before | B．Unless | C．When | D．Once |
It was how the young man had learned five foreign languages _ attracted the audience’s interest.
| A．so that |
| B．that |
| C．what |
| D．in which |
It was in the small town now is a big city the earthquake occurred.
| A．where; which |
| B．which; where |
| C．which; that |
| D．that; where |
--- Where did you find your lost pen?
--- It was in the park we visited that day.
| A．what |
| B．that |
| C．where |
| D．when |
will it be he leaves the army?
| A．How soon; that |
| B．How long; before |
| C．How soon; since |
| D．How long; since |
is a fact that English is being accepted as an international language.
| A．There |
| B．This |
| C．That |
| D．It |