问题
选择题
--- Does Mary work carefully?
---Yes. I think she works __________ in our class.
A．much carefully
B．more carefully
C．most carefully
D．much more carefully
答案
答案：C
题目分析：在有范围的比较级中如of或in的短语中用做高级。根据题意 ：---玛丽工作认真吗？---是的，我认为她在我们班工作是做努力的。修饰动词副词故用carefully的最高级借助most来构成。根据题意故选C