The reason was _____ I was busy with my work at that time.
--- We haven’t heard from her for a long time.--- What do you suppose _________ to her?
All the books that have been contributed by the neighborhood are said ________ to the city public library the other day.
As time went on, the police _______ their search for the _______ student.
This situation ________. Which of the following is WRONG?
I don't know the reason ______ you were absent from the meeting, but I'm sure someone will tell me the reason ________ you haven't told me.