Mistakes don’t just happen; they occur for a reason. Find out the reason, and then making the mistake becomes_______.
There was such a long queue for coffee at the intervals that we __________ have to give up.
It will cost a lot of time. __________I think we shall need it and it will certainly be useful to us more or less.
If I hadn’t wasted so much money last year, I __________ my own apartment now.
It can’t be a(n) __________that another big fire broke out in the same restaurant in three months.
Our school forbid __________, that is to say, we are not allowed __________at school.