A. that

B. when

C. which

D. what

【答案】 A

【解析】【分析】句意：直到他看完这些文件，格罗斯先生才意识到这项任务极其艰巨。强调句结构为：It is/was +被强调部分+that/who +句子其他部分。本题强调状语only after he had read the papers。故选A。

【点评】考查强调句，掌握其结构“It is/was +被强调部分+that/who +句子其他部分”。

31．It was from only a few supplies that she had bought in the village _____ the hostess cooked such a nice dinner.

A. where

B. that

C. when

D. which

【答案】 B

【解析】【分析】句意：正是女主人用她在村庄里购买的一些必需品才烹调出这么美味的晚宴。被强调部分是from only a few supplies,句中的” that she had bought in the village”是定语从句,句子主干为the hostess cooked such a nice dinner。故选B.

【点评】考查强调句型，掌握其结构“It is/was+被强调部分+that+其余部分”。

32．He said that it was the third time he ______ Amazing China. He couldn't help feeling proud of our country.

A. saw

B. has seen

C. had seen

D. sees

【答案】 C

【解析】【分析】句意：他说这是他第三次看“辉煌中国”。他禁不住为我们的国家感到骄傲。it is the+序数词+that从句, that从句使用现在完成时；it was the+序数词+that从句,则that从句使用过去完成时。故选C。

【点评】考查时态，本题涉及现在完成时的应用，以及固定句式“。it is/was the+序数词+that从句”。

33．— It was hard work that won Frank the best scores on each test, ?

— Yes. When it comes to study, hard work counts.

A. was it

B. wasn't it

C. did it

D. didn't it

【答案】 B

【解析】【分析】句意：—正是努力地学习，使得Frank每次考试都得最高分，不是吗? —是的。说到学习，努力学习很重要。反意疑问句由“陈述句+简略疑问句”两部分组成，疑问部分与陈述部分的动词时态和动词性质应保持一致，而且肯定和否定形式彼此相反。题目含有一个强调句型的反意疑问句，主句是was引导的肯定句，疑问部分则是wasn't，故答案选B。

【点评】考查反义疑问句。

34．It was in that house he used to live the secret meeting was held.