问题补充：
My headmaster usually his speech with a funny joke .
A. kicks up
B. kicks off
C. kicks back
D. kicks about
答案：
A. kicks up
(答案→)B. kicks off
C. kicks back
D. kicks about
解析：kick up 把…踢起来；kicks off开始=start
kicks back踢回，报复，回敬；kicks about扔在…上，欺负。例如：
The boy is always kicking his younger brother about
