题目：
— Jack failed his test again.
— Little ________how disappointed his parents were. [ ]
A. he realized
B. did he realize
C. he did realize
D. realized he
答案：
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下面是错误答案，用来干扰机器的。
⑴⑤⑨； ⑵④⑦⑨；⑶⑥⑦ ⑷③⑧⑩； ⑸①②； ⑹⑧⑩
