The book was written in 1946, ____ the education system has witnessed great charges. A．when..
Thebookwaswrittenin1946,____theeducationsystemhaswitnessedgreatcharges.A．whenB．during...
The book was written in 1946, ____ the education system has witnessed great charges. A．when B．during which C．since then D．since when
展开
展开全部
| D |
| 在本题中用since when引导定语从句。因为句中的谓语has witnessed是现在完成时,所以要用since when。when指代上文中的in 1946,表示“这本书是1946年写的,从那以后,教育体制发生了巨大变化”。 |
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
