The new group of students is better-behaved than the other group who stayed here . A. earl

问题补充：

The new group of students is better-behaved than the other group who stayed here .

A. early

B. earlier

C. earliest

D. the earliest

答案：

A. early

(答案→)B. earlier

C. earliest

D. the earliest

解析：因题目把这组新学生与前面一组学生进行比较，故用比较级。