You can never imagine what great trouble I had________the poor boy who was hurt seriously.
A.help B.to help C.helped D.helping
You can never imagine what great trouble I had________the poor boy who was hurt seriously.
A.help B.to help C.helped D.helping
D 考查固定搭配。将句子成分great trouble放回原处,即have trouble(in) doing可知答案是D。