It was not until the 1960s and 1970s archaeologists made real progress in understanding th

发布时间：2020-08-16 22:54:44

It was not until the 1960s and 1970s      archaeologists made real progress in understanding the script.
A. when
B. which
C. how
D. that

网友回答

A. when
B. which
C. how
(答案→)D. that
解析：考查固定句型。It was not until …that …这是对not until…句型的强调句。故选that。
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