问题
选择题
If you want to get good grades, ____________, you should listen to the teacher _________ in class.
A．at first; careful
B．first of all; carefully
C．for the first time; careful
D．first of; carefully
答案
答案：B
此题考查副词或副词短语，first of all表示首先，carefully表示仔细地，用来 修饰listen to。