单选题 Every language in the world has evolved slowly and constantly from an older form into a newer one.
A. developed B. exhausted C. striven D. restored

【正确答案】 A
【答案解析】[解析] 划线词evolved“使发展，使进展”。A项developed“发展”；B项exhausted“耗尽”；C项striven“努力，奋斗”；D项restored“恢复，归还”。A项与划线词语意对应。