15. With the reform of educational system, the teachers_____school I worked before have greatly changed their way of teaching.
_______ he has been chosen to work as a teacher in the mountain village ______ him feel very proud.
----- Has any of you reached the Great Wall ? -----________.
This is the ______ bag ______ lost yesterday, but it’s not mine.
I’d rather he ______ tomorrow afternoon.
Although it is not our normal _____ to give credit, this time I think we should consider the matter more closely.