The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good _______. 

Now an increasing number of middle school students go abroad for further study at their own ________, trying hard to realize their dreams.

To their great ___, they got the bad news that their English teacher had been in hospital for quite a few days.

Opinions of that kind are best kept to yourself, and not voice＿＿＿＿＿．

The song Take Me Home, Country Roads has much      to people, for few people can avoid getting caught up in its originally real country music．