摘要：9．The book was written in 1946, since when the education system great changes. A．witnessed B．has witnessed C．had seen D．saw 答案:B 解析:解决该题的关键在于时间状语 since when 即 since 1946“自从1946年 .由此可知句子用现在完成时态.
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The book was written in 1946, _______ the education system has witnessed great changes.
A．since then B．when C．since when D．during which
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The book was written in 1946, ____ the education system has witnessed great changes.
|
A．when |
B．during which |
C．since then |
D．since when |
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The book was written in 1946, ____ the education system has witnessed great changes.
A．when B． during which C． since when D． since then
查看习题详情和答案>>The book was written in 1946,_______ the education system has witnessed great changes.
A．when B．during which C．since then D．since when
查看习题详情和答案>>The book was written in 1946, ____ the education system has witnessed great changes.
| A．when | B．during which | C．since then | D．since when |