问题
选择题
Only after the woman had her own child ___ how difficult it was to be a mother.
A．she realized
B．had she realized
C．she had realized
D．did she realize
答案
答案：D
考查倒装句型。Only放在句首，且强调状语时，后面使用部分倒装。排除AC。感激时态，可以看出B错误，这里不需要使用过去完成时。句意：只有当她有了自己的孩子以后才意识到做妈妈是多么的困难。