She is careful girl she hardly makes mistakes in the exam. A. so thatB. such thatC. a

问题补充：

She is careful girl she hardly makes mistakes in the exam.

A. so, that

B. such, that

C. a such, that

D. such a, that

答案：

A. so, that

B. such, that

C. a such, that

(答案→)D. such a, that

解析：本题的含义是她是一个如此细心的女孩以至于她在测验中几乎不会犯错误，such修饰名词，可数名词单数要加上a，such……that可以表示如此……以至于的意思，故本题选D。