问题
Not until he went through real hardship _____ the love we have for our families is important.
A:had he realized
B:did he realize
C:he realized
D:he had realized;
B:did he realize
C:he realized
D:he had realized;
正确答案是：
同类题型
The mother often tells her son to be a good boy, warning him to ____ trouble.
1Mr. Green ___ to themanager now. You’d better call him later.
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