The book was written in 1946, __________ the education system has witnessed great charges. A.whenB.

题目简介

The book was written in 1946, __________ the education system has witnessed great charges. A.whenB.

题目详情

The book was written in 1946, __________ the education system has witnessed great charges.
A.whenB.during which
C.since thenD.since when
题型:单选题难度:偏易来源:不详

答案

D。
since when中的when指1946,since when指的是since 1946,即指“自1946年起”。注意不要误选C,如果将C改为and since then,则可选C。

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