问题
选择题
----Who’s the man sitting under the tree? ----I don't ___ this man, but I’ve ___ him.
A．know of, heard about
B．know, heard about
C．know, heard
D．know of, heard
答案
答案：B
know 意思是:知道,了解; hear about意为:听说 ; hear意为:听见.