Question

After Yang Li Wei succeeded in circling the earth, _______ our astronauts desire to do is walk in space. 

A. where            B. what                C. that            D. How

Answer 1

B

解析:

主要测试主语从句。解答该试题的关键在于弄明白句子结构。有语境可知该句子的结构同上面两道试题。以下句子_______ our astronauts desire to do中缺少引导词和动词do的宾语即双重作用。答案显而易见。