Question

After five years of preparation，Shanghai presented the world ______ many said was the greatest Special Olympics.

A．when

B．what

C．where

D．which

Answer 1

B

此题中，present接了双宾语，一个是the world，另一个是what引导的宾语从句。what引导的宾语从句又是一个主从复合句，said的宾语从句中缺少主语，因此只有what能引导从句。