问题
选择题
By the time I reached home, my parents _______the dinner for me already.[ ]
A. had cooked
B. cooked
C. have cooked
D. cook
答案
答案：A
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By the time I reached home, my parents _______the dinner for me already.[ ]
A. had cooked
B. cooked
C. have cooked
D. cook
答案：A