The headmaster will not permit the change in the course, nor __________ it a thought.
At school, some students are active, ______ some are shy, yet they can be good friends with one another.
___________ seems hard to believe is that the bird the officer uses is the same bird often seen in public parks----the pigeons.
I’d appreciate _______ if you could let me know in advance whether you will come or not.
It was after he had read the requirements _______ Mr. Black realized the task was too difficult to be finished.
The last bus _________ two minutes before I arrived at the bus stop. What a pity!