Question

After Yang Liwei succeeded in circling the earth, _____ our astronauts desire to do is walk in space.　 [上海2004]

A. where 　　 　B. what

C. that 　　 　　 D. how

 

Answer 1

B

考查主语从句。从句中动词do缺少宾语，故选what，what引导的从句在句中作主语。