On feeling the earthquake,the teacher stayed calm in the front of the classroom,________ all the students to rush out of the classroom as quickly as possible.
They are so close friends and their friendship ________ college days.
It was __________ back home after he finished the report.
In dealing with public relations, we should make every effort to prevent the _______ in personality.
If you _______ a mistake in reviewing the report, please bring it to my attention.
This is a very special flower and it can _______ a strong sweet perfume at night.