—Do you have any idea what your former boss would say about you?—I don't know, __________.
A small plane crashed into a hillside five miles east of the city, _________ all the four people on board.
He deserves to gain a high score in the coming exam, as he _________ preparations for it.
In the lecture, little Tom kept silent all the time unless _________ to express his opinion.
_________ are the days when teachers punished students for minor offenses, being late for school, for example.
It is quite impossible that it will rain tomorrow. But if it __________, I would still go to school by bike.