(·新课标Ⅱ 10)It was only after he had read the papersMr.Gross realized the task before hi

问题补充：

(·新课标Ⅱ，10)It was only after he had read the papersMr.Gross realized the task before him was extremely difficult to complete.

A. when

B. that

C. which

D. what

答案：

A. when

(答案→)B. that

C. which

D. what

解析：考查强调句。题干可还原为：Mr.Gross realized the task before him was extremely difficult to complete only after he had read the papers，即可判断为强调句，因此填that。