问题
选择题
1It doesn't matter so much whether he works hard；the question is whether he works ______.
A．above all
B．in all
C．at all
D．after all
答案
答案：C
此题考查短语辨析。at all“全然，根本，真地”；above all“最重要的是”；in all“总共”；after all“毕竟，终究”。