A turning point of the continuously high housing price won’t appear suddenly because there must be a certain process _____ many factors lead to the change.
Who did the teacher ________ the exercises?
Besides dogs, _______ horse has had the closest relationship with ______ man.
As far as I am concerned, education is about learning and the more you learn, __________.
The number of people invited _____ fifty, but a number of them ______ absent for different reasons.
He___ have attended the meeting this morning. He has been staying at my home for a whole day.