单选题 They are an odd couple. She is as tall______he is short, and he is as fat______she is thin. But they are both______happy as they are old.

A、 as, as, so
B、 while, while, as
C、 and, and, as
D、 as, as, as

【正确答案】 D

【答案解析】解析：句意：他们是对怪夫妻。她很高，而他很矮，他很胖，而她很瘦，但是他们都是又老又开心。本句考查“as…as…”的用法。前两个空格是反向比较，表示不同事物或人之间不同性质的比较，比较的是某一范畴连续体的相异的两端，即tall和short．fat和thin；第三个空格表示主语相同而比较项目不同。