1．Yet, in a sense it's human nature to do precisely that—we assess the advantages and __________ (弊端) of decisions all the time.
[答案] disadvantages
2．The common cold is a good example: women, on __________ (平均), get fewer colds than men.
[答案] average
3．The boy didn't __________ (集中) his attention on his study.
[答案] concentrate
4．The box __________ (包含) ten books and some clothes.
[答案] contains
5．The __________ (文章) is so good that all the students like it.
[答案] essay
6．We are __________ (access) to the library.
[答案] accessible
7．With his __________ (permit), we went to his office to use his computer.
[答案] permission
8．The great __________ (invent) will benefit the world.
[答案] invention
