In his lecture, the professor referred to the belief, in contrast to all other countries, ______the elderly are wise, ______is particularly dominant in the Chinese culture.
As there was not much chance to find good jobs in their hometown, many young men now tried to __________ their fortune in cities.
His words are strongly impressed __________ my memory.
It is __________ to discuss the question again and again.
__________ it will take me six weeks, I am determined to finish the job.
__________ for one year was a very enjoyable and exciting experience for me.