【正确答案】 D

【答案解析】That teacher is very good with children。那位教师对儿童很好，with在此处是“对”的意思，表示“关系”。be good at意为“精于，善于”。如：She is very good at English composition.她很会写英语作文。She is good at looking after people.她很会照顾人。