He ______ the ladder when ______.
Each time I ________ a good essay when reading newspaper , I cut it out and keep it.
A harmonious society is very important , so all the laws must be strictly _________.
The English teacher tells the students to have ______ for different races and appreciate the diversity of other cultures .
______ young in our village are now living _______much more comfortable life than we did.
__________ the program , they have to stay there for another two weeks.