问题 选择题

Stephen Hawking believes that the earth is unlikely to be the only planet     _life has developed gradually.        

A.that

B.where

C.which

D.whose

答案

答案:B

考查定语从句。Where在从句中做状语。“霍金认为地球不可能唯一有生命进化的星球。”

单项选择题
单项选择题