问题
选择题
Please listen to the teacher as _______ as you can in class.
A．careful
B．carefully
C．careless
D．care
答案
答案：B
考查形容词和副词的用法。句意“上课时，请尽可能的认真听老师讲课。”修饰动词用副词；修饰名词用形容词。listen to是动词短语，用副词修饰，排除A、C、D。故选B。
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