__, he also had a son incollege who had taken a bank loan to pay for his studies

She remains optimistic (乐观的) in spite of so much hardship she has _____.

______ your son has no interest in piano, there is no point pushing him to learn it.[ ]

__________ is human nature that a great many people are often willing to sacrifice higher pay for the privilege of becoming white-collar workers.

Peter is busy ___________ at school, but he neverforgets __________ exercise every day.