The fact is that I earned my passage by working as an unpaid hand, which _______ my appearance. 

---Is Michael a man with good manners?---I don’t think so. As a matter of fact, he is ______but polite.

On the __________ first day, our teacher told us that it was vital that we __________ notes in English class.

(2014·湖北重点中学联考)In order to protect the environment，people are greatly encouraged to travel by public________.

I______of your trying to earn some money, but please don’t ignore your studies.