问题
选择题
Just before the English class, I suddenly realized that I _____ my English textbook at home. [ ]
A. forgot
B. had forgotten
C. left
D. had left
答案
答案：D
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Just before the English class, I suddenly realized that I _____ my English textbook at home. [ ]
A. forgot
B. had forgotten
C. left
D. had left
答案：D