问题
选择题
Jack took music than any boy in his class and held a concert successfully.
A．serious
B．seriously
C．more serious
D．more seriously
答案
答案：D
题目分析：句意：杰克比班级的任何一个男孩都认真。并且成功的举行了一场音乐会。分析修饰动词运用副词形式。通过句意体现为比较级的形式，因此选择more seriously.故选 D