问题补充:
--- Tom is one of students in my class .
--- Yes . He usually prefers at home to playing outside .
A. the most hard-working , studying
B. more hard-working , to study
C. the most hard-working , to study
D. more hard-working , studying
答案:
(答案→)A. the most hard-working , studying
B. more hard-working , to study
C. the most hard-working , to study
D. more hard-working , studying
解析:根据in my class可知,本句应该是最高级,根据one of +形容词的最高级+名词复数的用法,应该排除BD;根据prefer doing to doing“喜欢干某事,而不喜欢某事”,是固定用法。所以本题选A。