单选题
The role of American women______significantly from the time the nation was born, to the modern era of the 1950s and 1960s.
A、
has changed
B、
has been changed
C、
changed
D、
had been changed
【正确答案】
D
【答案解析】
解析:语法知识。考查时态。句中提及美国女人的角色在二十世纪五六十年代已经改变了,表示当时已经完成的动作,故应该用过去完成时表达,再考虑到role与change之间应为被动关系,故答案为D。
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