单选题
He's always been kind to me-I can't just turn my ______ on him now that he needs my help.
A. head B. ear C. back D. hand
【正确答案】
C
【答案解析】turn one's back on sb背弃，抛弃。turn one's．head使…高傲起来，使爱上…，着迷。turn one's ear是错误的搭配，turn a deaf ear to置若罔闻。turn one's hand to承担。