Mr Johnson preferred heavier work to do.
A. to be given
B. to be giving
C. to have given
D. having given
网友回答
(答案→)A. to be given
B. to be giving
C. to have given
D. having given
解析：prefer后面的动名词或动词不定式的动作主体就是句子的主语。动词give一般要有双宾语，而句子里并无give的间接宾语（给谁），因此全句意思应是“约翰逊先生宁可有（被给予）更重的活干”。