问题
Not until he left his home ______ to know how important the family was for him
A:did he begin
B:had he began
C:he began
D:he had begun
B:had he began
C:he began
D:he had begun
正确答案是：
同类题型
My brother doesn’t like playing _____piano. He likes playing _____ chess.
No one could_______ their tears while watching the moving performances.
Let’s keep to the point, or we any decisions
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This kind of cloth _______ wellI think it is worthy ________