——Hate cannot drive out hate; only love do that.——Martin Luther King Jr.A. can B. must C.

问题补充：

——Hate cannot drive out hate; only love do that.

——Martin Luther King, Jr.

A. can B. must C. should

答案：

解析：can能，能够；must必须，一定；should应该。句意：仇恨并不能消除仇恨；只有爱才能做到。——马丁路德金。结合语境可知选A。