问题
选择题
Considering his poor health condition, the doctor insisted on his_____ a good rest before going back to work.
A．being taken
B．having taken
C．his taken
D．his taking
答案
答案：D
考查短语:insist on doing 坚持做某事，doing前可以跟形容词性物主代词，句意：考虑到他的身体健康不好，医生坚持他好好休息在回去上班之前。所以选D。