Ⅰ.语境填词
1．I feel quite ________ (惭愧的) that I have not settled the problem.
2．He knew I was ________ (精力充沛的) and would get things done.
3．My grandfather was puzzled with the ________ (衰退) of his memory.
4．This discovery had a major effect on the ________ (治疗) of heart disease.
5．The idea of travelling abroad is not ________ (有吸引力的) for me at all.
6．The mother was ________ (尴尬的) by her child’s bad behavior.
