选出下面划线词语解释错误的一项[ ]

A．全桥结构匀称，和四周景色配合得十分和谐。

匀称：均匀，比例和谐。

B．皇帝即位、生日、婚礼和元旦等都在这里受朝贺。

元旦：这里指农历一年的第一天。

C．过去的院子或天井中，为避免从门外直接望见厅室，必置一屏。

天井：宅院中露天的水井。

D．艺术形式处理中，往往是失之毫厘，差之千里。

失之毫厘，差之千里：相差虽小，而造成的误差或错误却很大。

There was a woman in Detroit, who had two sons. She was worried about them, especially the younger one, Ben, because he was not doing well in school. Boys in his class played jokes on him because he seemed so (21) The mother (22) that she would help her sons to do (23) in school by herself. She told them to go to the Detroit Public Library to (24) a book a week and do a book report for her.
One day, in Ben’s class, the teacher held up a rock and asked (25) anyone knew it. Ben put up his hand and the teacher let him (26) . "Why did Ben raise his hand" all of his (27) whispered (耳语) and wondered. "He (28) said anything. What could he possibly want to say" To their surprise, Ben not only (29) the rock, but also said a lot about it. He (30) other rocks in its group and even knew (31) the teacher had found it. The teacher and the other students were (32) Ben had learned this from doing one of his book (33) .
Later Ben became the (34) student of his class. When he finished high school, he went to Yale University and (34) became one of the best doctors in the United States.

Ⅱ. 完形填空

A．whether

B．what

C．where

D．why