问题
选择题
I don't think John saw me. He ____ a book at that moment. [ ]
A. just read
B. has just read
C. was just reading
D. had just read
答案
答案：C
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I don't think John saw me. He ____ a book at that moment. [ ]
A. just read
B. has just read
C. was just reading
D. had just read
答案：C