The lecture, ________ at 7:00 pm last night,was followed by an observation of the moon with telescopes.
As nobody here knows what is wrong with the machine, we must send for an engineer to ____ the problem.
After listening to the teacher’s explanations, John ____ what he had done was wrong.
My sister as well as her classmates who ____ late for class ____ criticized by Mr. Hunt.
–He is from America and majors in Chinese herbal medicine in China. –____.
Many people are still in ____ habit of writing silly things in____ public places.