(2009福建顺昌模拟)——We can never forget the days the two astronauts in spaceship worked together and the days we spent together.
A. when; which
B. which; when
C. what; that
D. on which; when
网友回答
(答案→)A. when; which
B. which; when
C. what; that
D. on which; when
解析：选择定语从句的关系词关键在于区别关系词在从句中作什么成分。第一个先行词the days在从句中作状语，故用when或on which；而第二个the days在从句中作spent的宾语必须用which或that。综合两个空，只能选A。